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# Calculus

Mathematics branch that studies change and motion, providing tools and techniques for analyzing and solving problems involving rates of change and accumulation.

## divergence

limx→13x+2=5limx→13x+2=5 What values of x guarantee that f(x) = 3x + 2 is within 0.05 unit of 5?

• If x is within 0.02 unit distance of 1, then f(x) is within 0.05 unit of 5.

What is the slope of the line through (-1,-2) and (x,y) for y = x2+ 2x + 1 and x=-0.90? x=-1.05? x=h1? What happens to this last slope when h is very small? Round-off your answers to 2 decimal places whenever possible. Use the ^ symbol to express the exponent of a variable, i.e. x^2 (x squared)

• when x=-0.90: m = 2 when x=-1.05: m = 3.3 when x=h-1: m = h^2+1 /h when h approaches 0: m = 1

Let f(x) = 3x+2 and g(x) = 2x+A. Find a value for A so that f(g(x)) = g(f(x)).

• f(g(x)) = 6x+3A+2 g(f(x)) = 6x+A+4 A = 1

Determine all the critical points for the function. f(x)=xex2

• does not have any critical points

Find the slope and midpoint of the line segment from P(2,-3) to Q(2+n,-3+5n).

• Slope = 5 midpoint (0.5n+2,2.5n-3)

Evaluate limx→35x2−8x−13x2−5limx→35x2−8x−13x2−5

• 2

Write the contrapositive of the statement: If I exercise and eat right, then I will be healthy. Don't use contractions in your answer

• If I am not healthy, then I do not exercise and eat right.

Use the function h defined by the graph below to determine the following limits: (a) limx→2x+h(x)limx→2x+h(x) b) limx→3h(x2)

• (a) 3 (b) 3/4

If a tangent line is inclined 45 degrees, then what is the slope the tangent line?

• 1

Find the slope of the line through (0,0) and (x-1, x2 -1).

• m = x+1

f(x) = 12 - x 2 ; a = 2 ; f(2.1)

• L(x) = -4 x + 16

Which of the following are negation of the statement: f(x) and g(x) are polynomials.

• f(x) or g(x) is a polynomial f(x) and g(x) are not polynomials

Find the slope of the line through (-5,3) and (x+1, x-2).

• x-5/x+6

Find the slope and concavity of the graph pf x2y+y4=4+2xx2y+y4=4+2x at the point (-1,1)

• Slope = 4545, Concavity = downward

Let A = {1,2,3,4,5}, B = {0,2,4,6}, and C = {-2,-1,0,1,2,3}. Which of the values of x will satisfy each statement?

• x is in A or x is in C

(b) What was the average velocity of the car from t=20 to t=25 seconds?

• (b) average velocity = -20 feet/second

Use the Bisection Algorithm Method to find the root of the given function to an interval of length less than or equal to 0.1. Answer should be up to one decimal place only. f(x) = x2 - 2 on [0,3]

• 1 / 4

What values of x will make the statement x+5=3 or x2=9.

• x = -2 or (x = 3 and x = -3 )

Find the point of intersection and the angle between 2x - 3y = 3 and 4x - 2y = 10.

• Point of Intersection = (3 , 1 ) Angle of Intersection = 29.740

Locate the critical points of the following functions. Then use the second derivative test to determine whether they correspond to local minima or local maxima or whether the test is inconclusive.

• Critical points: (2, -1/4) and (10, -1/20) Local minimum: x = -2 Local maximum: x = 10

Which values of x will make the statement x+5=3 or x2=9 true?

• -2 or (3 and -3)

Find the point of intersection and the angle between y = 4 - 2x and x - y = -1.

• Point of Intersection = (1 , 2 ) Angle of Intersection = -71.56 0

Let f(x) = 2-x 2 , evaluate (a) f(x+1) and (b) f(x)+f(1).

• (a) f(x=1) = -x 2 - 2x+1 (b) f(x) + f(1) = -x 2+ 3

The process of taking the limit of a sum of little quantities is called

• Integration

Evaluate limx→0cos2x−1cosx−1limx→0cos2x−1cosx−1

• 4

Use implicit differentiation to find dydxdydx, x3=x+yx−yx3=x+yx−y

• y1=3x2(x−y)2+2y2xy1=3x2(x−y)2+2y2x

Determine whether the graph is continuous or not continuous. (GRAPH MISSING: ANSWER NOT CONFIRMED)

• Not Continuous

For the function f(x)=x(x2+1)2f(x)=x(x2+1)2 on [-2,2] Find the critical points and the absolute extreme values of f on the given interval.

• x=±13−−√x=±13 as the critical points absolute maximum value of f: 33√163316 absolute minimum value of f:33√163316

Given the function f(x)=3x-4, evaluate: (a) f(x-2), (b) f(x)-f(2), (c) f(1)/f(3), and (d) f(1/3). Use fraction as final answer, if any.

• (a) 3x-10 (b) 3x-6 (c) -1/5 (d) -3

Assume that y is a function of x. Find y1=dydxy1=dydx for y=x2y3+x3y2y=x2y3+x3y2

• y1=2xy3+3x2y21−3x2y2−2x3yy1=2xy3+3x2y21−3x2y2−2x3y

Use the function h defined by the graph shown to determine the following limits: (a) limx→2h(5−x)limx→2h(5−x) (b) limx→0h(3+x)−h(3)limx→0h(3+x)−h(3

• (a) 3 (b) 3/4

The following problems could be solved by differential calculus:

• largest or smallest volume of a solid rate or speed

The figure shows the temperature during a day in a place. How fast is the temperature changing from 1:00 P.M. to 7:00 P.M.? Round-off your answer to 2 decimal places.

• -1.67 0F/hour

If a and b are real numbers, then (a+b)2 = a2+b2 .

• False

For all positive real numbers a and b, if a > b, then a2 > b2

• TRUE

Use linear approximation to estimate the given function value

• f(2.1) = 7.6

Evaluate limx→1x13−1x14−1limx→1x13−1x14−1

• 4 / 3

Find the slope of the line through (0,0) and (x-1, x2

• m = x+1

Find a linear approximation of f(x)=3xe2x−10f(x)=3xe2x−10 at x = 5

• L(x) = 15 + 33 (x - 5) = 33 x + 150

Use Newton's Method to find the root of x4−5x3+9x+3=0x4−5x3+9x+3=0 accurate to six decimal places in the interval [4,6].

• x ≈ 4.53

Write the equation of the line that represents the linear approximation to the function below at the given point a. f(x)=e2;a=0;f(0.05)f(x)=e2;a=0;f(0.05)

• f(a) = 7.39

Use the functions f and g defined by the graphs as shown to determine the following limits: (a) limx→1(f(x)xg(x))limx→1(f(x)xg(x)) (b) limx→1f(g(x))

• (a) 0 (b) 5/4

Given g(x) = (x+3)/(x-1). Evaluate g(5) and g(2n+1).

• g(5) = 2 g(2n+1) = 1+(2/n)

If a and b are real numbers then (a + b)2 = a2 + b2

• False

Given f(x) = x3 - 4x2 +2, f(2) when evaluated is

• -6

Evaluate limx→0(x+5)2−25xlimx→0(x+5)2−25x

• 10

Find the length and midpoint of the interval from x=9 to x=-2. (use decimal values for fractional answer)

• Length =11and midpoint =3.5

If x divides 49, then x divides 30.

• False

The sum of two prime numbers is a prime.

• false

Find an equation of the line tangent to the graph of (x2+y2)3=8x2y2(x2+y2)3=8x2y2 at the point (-1,1)

• y - 1 = x + 2

Build a rectangular pen with three parallel partitions using 500 feet of fencing. What dimensions will maximize the total area of the pen?

• x = 50 ft. y = 125 ft. A = 6250 ft2

From the figure shown, find the values of f(2), f(-1) and f(0).

• f(2) = 5 f(-1) = 2 f(0) = 1

The graph shows the population growth of bacteria on a petri plate. If at t=10 days, the population grows to 4600 bacteria, find the rate of population growth from t=9 to t= 10 days?

• rate of growth = 400

Find the local extreme values of the given function: f(x)=x4−6x2f(x)=x4−6x2

• Local minimum: (-1.73, -9) Local maximum:(1.73, -9)

Find the slope of the line through (-3-1) and (x+3, y+1).

• x-5/x+6

Define A(x) to be the area bounded by x and y axes, the line y=x+1, and the vertical line at x. (a) Evaluate A(2) and A(3) (b) What area would A(3) - A(1) represent?

• (a) A(2) = 4 square units A(3) = 7.5 square units (b) A(3) - A(1) = 6 square units

Use chain rule to calculate dydxdydx of y=x2sec(5x)y=x2sec(5x)

• dydx=−2xsec(5x)+5x2sec(5x)tan(5x)dydx=−2xsec(5x)+5x2sec(5x)tan(5x)

Evaluate limx→3x4−812x2−5x−3limx→3x4−812x2−5x−3

• 108 / 7

At which values of x is the function f(x)=x2+x−6x−2f(x)=x2+x−6x−2continuous and discontinuous?

• continuous at x = -3 discontinuous at x = 2

Given f(x) = 2x + 3 and g(x) = x2 . Evaluate . Sample text answer: 3x^2+6x7. Do not use space between the number, letter and symbol.

• 4x^2+12x+9

The 2 divisions of Calculus are:

• Integral Differential

Use chain rule to calculate dydxdydx of y=e−x2y=e−x2

• dydx=−2x−x2dydx=−2x−x2

For f(x) = 3x-2 and g(x) = x2+1, find the composite function defined by f o g(x) and g o f(x).

• f o g(x) = 3x^2+1 g o f(x) = 9x^2-12x+5

Given a function f, an interval [a,b] and a value V. Find a value c in the interval so that f(c)=V. Apply the Intermediate Value Theorem. (a)f(x)=x2f(x)=x2 on [0,3], V = 2 (b)f(x)=sinx on [0,π2],V=12f(x)=sinx on [0,π2],V=12

• (a) c = -1.41 ; c = 1.41 (b) c = 0.52

Use the graph below to determine the right-hand limit of the function f(x) at: (a) x=-2 (b) x=10

• (a) undefined (b) 0

An open rectangular box with square base is to be made from 48 ft.2 of material. What dimensions will result in a box with the largest possible volume?

• x = 4 ft. y = 2 ft. V = 32 ft.3

A sheet of cardboard 3 ft. by 4 ft. will be made into a box by cutting equal-sized squares from each corner and folding up the four edges. Given that variable x shall be the length of one edge of the square cu from each corner of the sheet of cardboard, what will be the dimensions of the box with largest volume?

• x ≈ 0.57 ft, so Length = 2.86 ft Width = 1.86 ft Height = 0.57 ft V ≈ 3.03 ft

Find an equation of the line tangent to the graph of y=x2+sinπ2xy=x2+sinπ2x at x = -1

• y = -2x - 2

Use Newton's Method to find the root of 2x2+5=ex2x2+5=ex accurate to six decimal places in the interval [3,4].

• x ≈ 4.36

Assume that y is a function of x. Find y1=dydxy1=dydx for x−y3y+x2=x+2x−y3y+x2=x+2

• y1=1−y−3x2−4x3y2+x+2y1=1−y−3x2−4x3y2+x+2

Which of the following is the contrapositive for the statement: If your car is properly tuned, it will get at least 24 miles per gallon.

• If your car will not get at least 24 miles per gallon, then it is not properly tuned.

Let f(x) = -x 4 -x-1, evaluate f(-1) and -2f(1).

• f(-1) = -1 -2f(1) = 6

Given g(t) = t+5t−1t+5t−1, evaluate: (a) g(5) and (b) g(2s - 5)

• (a) g(5) = 5/2 (b) g(2s-5) = s/s-3

Use the linear approximation to estimate the given function value.

• f(0.05) ≈ L (0.05) = 0.05

Use chain rule to calculate dydxdydx of y=(5x2+11x)20y=(5x2+11x)20

• dydx=(20)(5x2+11x)19(10x+11)dydx=(20)(5x2+11x)19(10x+11)

Find the dimensions (radius r and height h) of the cone of maximum volume which can be inscribed in a sphere of radius 2.

• r ≈ 1.89 h ≈ 2.67 V ≈ 9.93

Percent error ≈

• 20

Sketch the lines X=1, x=2, and x=3 tangent to the curve given in figure 7. Estimate the slope of each of the tangent lines you drew.

• (2 answers) The slope of the tangent line x=2 is 0. The slope of the tangent lines at x=1 is 1 and at x=3 is -1.

Evaluate limx→0(x+1)3−1xlimx→0(x+1)3−1x

• 3

Find the slope of the line which is tangent to the circle with center C(3,1) at the point P(8,13).

• Slope of the tangent line = -5 /12

Write the contrapositive of the statement: I feel good when I jog. Answer: When I don't jog, I feel

Which of the following are integer values of x that will make the statement x>4 and x

• 5,6,7,8

A __ assigns a unique output element in the range to each input element from the domain.

• function

Find the point of intersection and the angle between x - y = 32 and 3x - 8y = 6.

• Point of Intersection = (50 , 18 ) Angle of Intersection = -24.44 0 (round-off to 2 decimal places)

Let f(x) = 1-(x-1)2 evaluate (a)f(2)f(3) and (b)f(23)(a)f(2)f(3) and (b)f(23

Write the contrapositive of the statement: If x2 + x - 6 = 0 then x=2 or x=-3.

• Answer: If x = - 2 and x = 3 then x2 + x - 6 is not equal to 0

Which of the following figures represents the graph of a function?

• Figure 2

Assume that y is a function of x. Find y1=dydxy1=dydx for y=sin(3x+4y)y=sin(3x+4y)

• y1=3cos(3x+4y)1−4cos(3x+4y)y1=3cos(3x+4y)1−4cos(3x+4y)

Find the equation of the line passing through (-2,3) and perpendicular to the line 4x=9-2y. Use the general equation of the line for your final answer.

• X –2y +8= 0

(Note: Answers should be in decimal form only. Up to two decimal places}

• x ≈ 8.77 ft. y ≈ 16.67 ft. L ≈ 17.64 ft.

Find a value for B so that the line y = 10x – B, goes through the point (5,-5).

• B = 55

Let f(x) = 2-x 2 , evaluate (a) f(x+1) and (b) f(x)+f(1)

• (a) f(x=1) = -x 2 - 2x+1 (b) f(x) + f(1) = -x 2+3

Calculus was developed by Leibniz and

• Newton

Assume that y is a function of x. Find y1=dydxy1=dydx for cos2x+cos2y=cos(2x+2y)cos2x+cos2y=cos(2x+2y)

• y1=cosxsinx−sin(2x+2y)sin(2x+2y)−cosysinyy1=cosxsinx−sin(2x+2y)sin(2x+2y)−cosysiny

The figure shows the distance of a car from a measuring position located on the edge of a straight road. (a) What was the average velocity of the car from t=0 to t= 20 sec? (b) What was the average velocity from t=10 to t=30 sec? (c) About how fast was the car traveling at t=15 sec?

• (a) V = 15 ft/sec (b) V = -5 ft/sec (c) V = 20 ft/sec

(Note: Answer should be in decimal form. Up to two decimal places only)

• x ≈ 17.32 ft. θ = 30 degrees

There are 50 apple trees in an orchard. Each tree produces 800 apples. For each additional tree planted in the orchard, the output per tree drops by 10 apples. How many trees should be added to the existing orchard in order to maximize the total output of trees?

• x = 15 additional trees P =r 42250 apples

From the figure shown, A(x) is defined to be the area bounded by the x and y axes, the horizontal line y=3 and the vertical line at x. For example A(4)=12 is the area of the 4 by 3 rectangle (a) Evaluate A(2.5)

• 7.5 square units

Find the equation of the line which goes through the point (3,10) and is parallel to the line 7x-y=1.

• 7x – y –11= 0

The figure shows the distance of a car from a measuring position located on the edge of a straight road. (a) What was the average velocity of the car from t=10 to t=30 seconds?

• a) average velocity = 10 feet/second

Find an equation describing all points P(x,y) equidistant from Q(-3,4) and R(1,-3). (use the general equation of a line

• 8x –14y +15=0

For f(x) = |9-x| and g(x) = sqrt(x-1). Evaluate fog(1).

• f(g(1) = 9

Use Newton's Method to determine x2x2 for f(x)=xcos(x)−x2f(x)=xcos(x)−x2 if x0=1x0=1

• x2 = 0.74

Use the function f defined by the graph shown to determine the following limits: (a) limx→1+f(x)limx→1+f(x) (b) limx→1−f(x)

• (a) 2 (b) -1

If f(x) and g(x) are linear functions then f(x)g(x) is a linear function.

• False

Do the following. Determine the answers by typing the missing numbers on the spaces provided. Up to two decimal places only:

• Do the following. Determine the answers by typing the missing numbers on the spaces provided. Up to two decimal places only:

The slope of a horizontal line is

• 0

Evaluate limx→7x−3−−−−√limx→7x−3

• 2

Use implicit differentiation to find dydxdydx (xy+1)3=x−y2+8(xy+1)3=x−y2+8

• y1=1−3y(xy+1)23x(xy+1)2+2yy1=1−3y(xy+1)23x(xy+1)2+2y

Determine all the critical points for the function. f(x)=x2ln(3x)+6f(x)=x2ln(3x)+6

• 0.20

Let f(x)=1-(x-3)2 , evaluate: (a) f(x+3), (b) f(3-x), and (c) f(2x+1).

• (a) 1 - x 2 (b) 1 - x 2 (c) -4 x 2 + 8x-3

Compute the percent error in your approximation by the formula: |approx−exact|exact|approx−exact|exact

• Percent error: 40.22 %

Find a linear approximation to h(t)=t4−6t3+3t−7h(t)=t4−6t3+3t−7 at t=−3t=−3.

• L(t) = 227 - 267 (t + 3) = -267 t - 57

Consider a rectangle of perimeter 12 inches. Form a cylinder by revolving this rectangle about one of its edges. What dimensions of the rectangle will result in a cylinder of maximum volume?

• r = 4 ft h = 2 ft V ≈ 100.53 ft3

Evaluate f(3), g(-1), and h(4)

• f(3) = 1 g(-1) = -2 h(4) = 1

A container in the shape of a right circular cylinder with no top has surface area 3 ft.2 What height h and base radius r will maximize the volume of the cylinder?

• r = 1 ft. h = 1 ft. V = 3.14 ft3

The slope of the tangent line is called the

• Derivative

What is the slope of the line through (3,9) and (x,y) for y=x2 and x=2.97? x=3.001? x=3+h? What happens to this last slope when h is very small (close to 0)? Round-off your answers to 2 decimal places, whenever possible.

• Slope at x=2.97 = 5.97 Slope at x=3.001 = 6.00 Slope at x=3+h = 6+h Slope when h is close to 0 = 6

Which of the following will make the statement x2+3 > 1 true?

• x is greater than or equal to -1

Write the negation of the statement: 8 is a prime number. 8 is

• not a prime number

1. Write the equation of the line that represents the linear approximation to the function below at a given point a. f(x) = ln(1 + x); a = 0; f(0.9)

• y = L(x) = x

Given f(x) = 2x + 3. Evaluate (f°f)(x). Sample text answer: 3x^2+6x-7. Do not use space between the number, letter and symbol.

• 4x+9

You are standing at the edge of a slow-moving river which is one mile wide and wish to return to your campground on the opposite side of the river. You can swim at 2 mph and walk at 3 mph. You must first swim across the river to any point on the opposite bank. From there walk to the campground, which is one mile from the point directly across the river from where you start your swim. What route will take the least amount of time?

• x ≈ 0.89 mi. Shortest possible time: T ≈ 0.71 hr.

Use chain rule to calculate dydxdydx of y=sin(4x3+3x+1)y=sin(4x3+3x+1)

• dydx=(12x2+3)cos(4x3+3x+1)dydx=(12x2+3)cos(4x3+3x+1)

Write the contrapositive of the statement: If x>3, then x2>9. Use words or phrase for your answer.

• If x2 <= 9, then x <= 3

Use implicit differentiation to finddydxdydx exy=2yexy=2y

• y1=yexy2−xexyy1=yexy2−xexy

Evaluate limx→103x−5−−−−−√5limx→103x−55

• 1

Determine all the critical points for the function y=6x−4cos(3x)y=6x−4cos(3x) x=???+2πn3,n=0,±1,±2,...x=???+2πn3,n=0,±1,±2,... x=???+2πn3,n=0,±1,±2,...x=???+2πn3,n=0,±1,±2,...

• 1.2217; 1.9199

Let f(x)=-1-x-2x2 , evaluate f(x+h)−f(x)hf(x+h)−f(x)h Factor out the negative sign for the final answer, if any

• -(4x+2h+1)

What is the slope of the line through (2,4) and (x,y) for y = x2+ x - 2 and x=1.99? x=2.004? x=2+h. What happens to this last slope when h is very small?

• when x=1.99: m = 4.99 when x=2.004: m = 5.00 when x=2+h:m = 5+h when h approaches 0: m = 5

Use chain rule to calculate dydxdydx of y=cos4(7x3)y=cos4(7x3)

• dydx=−84x2cos3(7x3)sin(7x3)dydx=−84x2cos3(7x3)sin(7x3)

Evaluate limx→43−x+5−−−−√x−4limx→43−x+5x−4

• 1 / 5

Assume that y is a function of x. Find y1=dydxy1=dydx for (x−y)2=x+y−1(x−y)2=x+y−1

• y1=2y−2x+12y−2x−1y1=2y−2x+12y−2x−1

Identify the absolute extrema and relative extrama for the following function. f(x)=x3f(x)=x3 on [-2,2]

• The function has an absolute maximum of 8 at x = 2 and absolute minimum of -8 at x = - 2. The function has no relative extrema.

Every vertical line on the Cartesian plane intersects the x-axis.

• True

Use the function h defined by the graph below to determine the following limits: (a) limx→2(xlimx→2(x . h(x−1))h(x−1)) (b) limx→0h(3+x)−h(3)h(x)limx→0h(3+x)−h(3)h(x)

• (a) 8/3 (b) -6/5

The slope of the line from point U(5,13) and the point V(x+1, x2 -3) is

• x+4

(Large lim_{x rightarrow 3} (2x + 1) = 7 ) What values of x guarantee that f(x) = 2x + 1 is within 0.04 units of 7? If x is within ­­­­­­_____ units of 3, then f(x) is within 0.04 units of 7.

• 0.02

Use chain rule to calculate dydxdydx of y = tan (e3x√)(e3x)

• dydx=−sec2(e3x−−√)3e3x√23x−−√dydx=−sec2(e3x)3e3x23x

If f(x) and g(x) are linear functions, then f(x) + g(x) is a linear function.

• True

Which of the following equations is the line perpendicular to 2x – 3y = 9?

• 3x + 2y =10

(Note: Answers should be in decimal form. Up to two decimal places only)

• x = 1.5 Smallest sum: S = 8.5

hich values of x is the function from the graph shown continuous? State the answers from the least to the highest, if there would be more than one

• x = -1

Use the functions f and g defined by the graphs as shown to determine the following limits: (a) limx→1f(x)+g(x)limx→1f(x)+g(x) (b) limx→2f(x)g(x)limx→2f(x)g(x)

• (a) 2 (b) 4/3

Find the line which goes through the point (2,-5) and is perpendicular to the line 3y-7x=2. (write the numerical coefficient of each term to complete the required equation)

• 3x +7y +29= 0

Use the function h defined by the graph shown to determine the following limits: (a) limx→2h(5−x)limx→2h(5−x) (b) limx→0h(3+x)−h(3)

• (a) 1 (b) -2

From the graph shown, find: a. f(-1) b. f(0) c. 3f(2) d. the value of x that corresponds to f(x)=0

• f(-1) = 2
• f(-1) = 2
• f(0) = 1

Use linear equation to estimate e0.06 . Choose a value of 'a' to produce a small error.

• e 0.06 = 1.06

(a) limx→2h(2x−2)limx→2h(2x−2) (b) limx→2h(1+x)

• (a) 1 (b) 1

Find an equation of the line tangent to the graph of x2+(y−x)3=9x2+(y−x)3=9 at x=1

• y=76x+136y=76x+136

Fill in the missing the numbers to find the correct answer/s: Find two nonnegative numbers whose sum is 9 and so that the product of one number and the square of the other number is a maximum. P = xy2

• x = 3 y = 6 P = 108

Find the slope of the line passing through the points (3,-4) and (-6,9). Use decimal value for your final answer.

• -1.44

A function f is given by f(7-11x) = 3x3 - 10x. Evaluate f(-4).

• f(-4) = -7

Write the negation for the statement: All quadratic equations have solutions.

• not all quadratic equations all solutions.

Use linear approximations to estimate 1–√46146. Choose a value of "a" to produce a small error

• 1–√46=f(146)≈L(146)146=f(146)≈L(146) = 12.08

2. Use linear approximation to estimate the given function value.

• f(0.9) = 0.9

If f(x) and g(x) are linear functions, the f(x) + g(x) is a linear function

• True

Every straight line on the Cartesian plane intersects the x-axis.

• True

(b) Evaluate A(4) - A(1)

• 9 square units

Let f(x) = (x-1)2 and define S(x) to be the slope of the line through the point (0,0) and (x,f(x)). Evaluate S(6).

• S(6) = 25/6

Refer to the figure. Which of the following represents the graph drawn in red? Select one:

• g(x)-1

Find the equation of a circle with radius=6 and center C(2,-5). (write the required exponent after the ^ symbol; write the numerical coefficient of each term to complete the required equation)

• X ^2+ y ^2–4x +10y –7= 0

From the graph shown, find the values of f(-3), f(-1), f(0), and f(1).

• f(-3) = -1 f(-1) = 1 f(0) = 0 f(1) = 1

Which of the following equations is the line perpendicular to 4y – 7x = 5?

• 4x + 7y – 18 = 0

The slope of the line through (5,15) and (x+8, x2 -2x) is

• x-5