Quiz about Inverse Functions

Question 1

Are these functions inverses?

Accepted Answer

Yes

Answer

No

Question 2

What is the inverse of the points
(1,3)(2,4)(6,8)

Accepted Answer

(3,1)(4,2)(8,6)

Answer

(-3,-1)(-4,-2)(-8,-6)

Answer

(1,3)(2,4)(6,8)

Answer

(-1,-3)(-2,-4)(-6,-8)

Question 3

Find the inverse of f(x) = -4x - 12

Accepted Answer

f^-1(x) = -1/4x - 3

Answer

f^-1(x) = 4x - 3

Answer

f^-1(x) = 1/4x + 3

Answer

f^-1(x) = -4x - 3

Question 4

Find the inverse of
f(x) = 1/4x - 7

Accepted Answer

f^-1(x) = 4x + 28

Answer

f^-1(x) = 4x + 7

Answer

f^-1(x) = -4x + 28

Answer

f^-1(x) = -4x - 7

Question 5

Are the following inverses of each other?

Accepted Answer

False

Answer

True

Question 6

Was the inverse function found correctly?

Accepted Answer

no

Answer

yes

Question 7

If f^-1(-25) = 7 then what is f(7) =

Accepted Answer

-25

Answer

25

Answer

7

Answer

No enough information.

Question 8

Are these functions inverses?

Accepted Answer

No

Answer

Yes

Answer

No way to tell

Question 9

Are these inverse functions?

Accepted Answer

no

Answer

yes

Answer

no way to tell

Question 10

Are the blue and red graphs inverse functions?

Accepted Answer

yes

Answer

no

Answer

no way to tell

Question 11

Find the inverse
f(x)=2x-2

Accepted Answer

f^-1(x)=1/2x+1

Answer

f^-1(x)=-2-1/2x

Answer

f^-1(x)=-7/3x-20/3

Answer

2-2/5x

Question 12

If f(x) = 3x-9, what is f^-1(12)?

Accepted Answer

7

Answer

25

Answer

9

Answer

11

Question 13

If f and g are inverse functions, and
f(2) = -1 g(1) = -2 f(1) = -2,
then which of the following MUST be true?

Accepted Answer

g(-1) = 2

Answer

g<sup></sup>(-2) = 0

Answer

g(1) = 1

Answer

g(-2) = -3

Question 14

In an inverse function, the _____ and _______ are switched from the original

Accepted Answer

input and output

Answer

f(x) and g(x)

Answer

positives and negatives

Answer

slope and intercept

Question 15

Given f(x) = x+3, find f^-1(-2).

Accepted Answer

-5

Answer

-1

Answer

1

Answer

5

Question 16

Is the inverse function found correctly?

Accepted Answer

yes

Answer

no

Inverse Functions

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