Quiz about 4.7 Practice

Question 1

Are these functions inverses?

Accepted Answer

Yes

Answer

No

Question 2

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 3

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 4

Are the following inverses of each other?

Accepted Answer

False

Answer

True

Question 5

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 6

Question 6.

Accepted Answer

Not Inverse Functions

Answer

Inverse Functions

Question 7

Question 7.

Accepted Answer

Inverse Functions

Answer

Not Inverse Functions

Question 8

What operation allows us to verify if functions are inverses?

Accepted Answer

Composing

Answer

Multiplying

Answer

Dividing

Answer

Adding

Question 9

When finding the inverse of a relation,
1st you replace f(x) with y
2nd switch the x's and y's
What do you do next?

Accepted Answer

solve for y

Answer

replace y with f^-1(x)

Answer

solve for x

Answer

find the greatest common factor

Question 10

The inverse of the function f(x) is written as ...

Accepted Answer

f -1(x)

Answer

f 2(x)

Answer

f '(x)

Answer

f +(x)

Question 11

What is the FIRST step I need to take to solve for x in the following equation?

Accepted Answer

Take the square root of both sides

Answer

Add 9 to both sides

Answer

Divide both sides by 49

Answer

Multiply both sides by 9

Question 12

$$f\left(x\right)=3x$$
Find $$f^{-1}\left(x\right)$$

Accepted Answer

$$\frac{x}{3}$$

Answer

$$\frac{3}{x}$$

Answer

$$0.3x$$

Answer

$$x imes3$$

Question 13

$$g\left(x\right)=-7x^5+7$$ Find the inverse of the function.

Accepted Answer

$$g^{-1}\left(x\right)=^5\sqrt{-\frac{x-7}{7}}$$

Answer

$$g^{-1}\left(x\right)=^5\sqrt{\frac{x-7}{7}}$$

Answer

$$g^{-1}\left(x\right)=-^5\sqrt{\frac{x-7}{7}}$$

Answer

$$g^{-1}\left(x\right)=-^5\sqrt{\frac{x-7}{7}}$$

Question 14

Genie was stuck in the lamp for how many years before Aladdin found him?

Accepted Answer

10,000 years

Answer

1,000 years

Answer

100,000 years

Question 15

Who wrote the song Baby?

Accepted Answer

Justin Bieber

Answer

Zayde Wolf

Answer

Imagine Dragons

Answer

One Republic

Question 16

Billboard Top Artist of 2023:

Accepted Answer

Taylor Swift

Answer

Drake

Answer

Nicki Minaj

Answer

Beyonce

Question 17

Where did Michael Jordan go to college?

Accepted Answer

UNC

Answer

Duke

Answer

Stanislaus State

Answer

He didn't go to college

Question 18

The Tennessee Titans were once the __________

Accepted Answer

Houston Oilers

Answer

Dallas Texans

Answer

St. Louis Browns

Answer

Duluth Eskimos

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