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If f(x) = 9×3 + 7×2 – x + C and f(-2) = 1, what is the value of C?

C = 43
C = -101
C = -5
C = -45

0 points

Question 2

 

Give the domain and range of the relation.

{(8, 2), (5, -8), (-1, 5), (-1, 7)}

domain = {5, 8, -1, 1}; range = {-8, 2, 5, 7}
domain = {5, 8, -1}; range = {-8, 2, 5, 7}
domain = {-8, 2, 5, 7}; range = {5, 8, -1}
domain = {5, 8, -1, -11}; range = {-8, 2, 5, 7}

0 points

Question 3

 

Find the value for the function.

Find f(-x) when f(x) = 3×2 – 4x + 1.

3×2 + 4x + 1
-3×2 + 4x + 1
-3×2 + 4x – 1
3×2 + 4x – 1

0 points

Question 4

 

Give the domain and range of the relation.

{(11, -3), (-2, -7), (-5, -6), (-5, 6)}

domain = {-3, -7, -6, 6}; range = {11, -2, -5}
domain = {11, -2, -5, -15}; range = {-3, -7, -6, 6}
domain = {11, -2, -5, 5}; range = {-3, -7, -6, 6}
domain = {11, -2, -5}; range = {-3, -7, -6, 6}

0 points

Question 5

 

Find the value for the function.

Find f(x + h) when f(x) = 3×2 – 4x – 3.

3×2 + 3xh + 3h2 – 4x – 4h – 3
3×2 + 3h2 – 4x – 4h – 3
3×2 + 3h2 + 2x + 2h – 3
3×2 + 6xh + 3h2 – 4x – 4h – 3

0 points

Question 6

 

Find the value for the function.

Find f(x + h) when f(x) = .

0 points

Question 7

 

Determine whether the relation is a function.

{(-1, -6), (2, -5), (4, 9), (8, -5), (10, 3)}

Function
Not a function

0 points

Question 8

 

Find the value for the function.

Find f(2x) when f(x) = .

2

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Question 9

 

Find the domain of the function.

f(x) = x2 + 8

{x|x ≠ -8}
{x|x > -8}
all real numbers
{x|x ≥ -8}

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Question 10

 

Find the value for the function.

Find f(-9) when f(x) = |x|- 6.

-3
3
15
-15

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Question 11

 

Give the domain and range of the relation.

{(-4, 8), (7, 9), (12, 5), (4, -5)}

domain = {4, -4, 12, 7}; range = {-5, 8, 5, 9}
domain = {4, -4, 12, 7}; range = {-5, -5, 8, 5, 9}
domain = {-5, 8, 5, 9}; range = {4, -4, 12, 7}
domain = {4, -4, 12, 7}; range = {-5, -8, 8, 5, 9}

0 points

Question 12

 

Determine whether the relation is a function.

{(1, -2), (1, -4), (4, -3), (9, -1), (12, 5)}

Function
Not a function

0 points

Question 13

 

Determine whether the relation is a function.

{(-6, 8), (-6, -5), (2, -8), (6, -8), (9, 6)}

Not a function
Function

0 points

Question 14

 

Solve the problem.

If a rock falls from a height of 50 meters on Earth, the height H (in meters) after x seconds is approximately

What is the height of the rock when x =  1.9 seconds? Round to the nearest hundredth, if necessary.

67.69 m
40.69 m
32.67 m
32.31 m

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Question 15

 

Solve the problem.

If f(x) =  and f(5) = -15, what is the value of A?

A = -91
A = -29
A = 91
A = 29

0 points

Question 16

 

Find the domain of the function.

g(x) =

{x|x > 49}
{x|x ≠ -7, 7}
{x|x ≠ 0}
all real numbers

0 points

Question 17

 

Solve the problem.

If a rock falls from a height of 60 meters on Earth, the height H (in meters) after x seconds is approximately
H(x) = 60 – 4.9×2.
When does the rock strike the ground? Round to the nearest hundredth, if necessary.

2.5 sec
3.5 sec
12.24 sec
1.58 sec

0 points

Question 18

 

Solve the problem.

It has been determined that the number of fish f(t) that can be caught in t minutes in a certain pond using a certain bait is f(t) = 0.28t + 1, for t > 10. Find the approximate number of fish that can be caught if you fish for 38 minutes.

About 24 fish
About 42 fish
About 11 fish
About 40 fish

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Question 19

 

Find the value for the function.

Find f(7) when f(x) = .

3
2

0 points

Question 20

 

Find the value for the function.

Find f(-4) when f(x) = x2 – 3x + 1.

27
29
3
5

0 points

Question 21

 

Find the domain of the function.

f(x) =

{x|x > -4}
{x|x ≠ -4}
all real numbers
{x|x ≠ 0}

0 points

Question 22

 

Determine whether the relation is a function.

{(-6, 3), (-1, 3), (1, -1), (1, 1)}

Not a function
Function

0 points

Question 23

 

Solve the problem.

If f(x) = , f(4) = 0, and f(6) is undefined, what are the values of A and B?

A = 4, B = 6
A = -6, B = -4
A = -4, B = -6
A = 6, B = 4

0 points

Question 24

 

Find the domain of the function.

f(x) = 3x – 5

all real numbers
{x|x ≥ 5}
{x|x ≠ 0}
{x|x > 0}

0 points

Question 25

 

Find the value for the function.

Find f(1) when f(x) =  .

– 1
– 9
–
7