Chapter 5: Inverse Functions

Which expression represents g(f(x)) if        

 f(x) = 2x - 8 and g(x) = 4x

• 8x - 32
• 8x² - 32x
• 8x - 8
• 6x - 8

Tags

CCSS.HSF-BF.A.1C

What is the inverse of the given coordinates: (1, 2) (3, 8) (-3, 6)

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

Tags

CCSS.HSF-BF.B.4C

Are these functions inverses?

• Yes
• No

Tags

CCSS.HSF-BF.B.4B

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

• 25
• 7
• No enough information. 
• -25

Tags

CCSS.HSF-BF.B.4C

Are these functions inverses?

• No
• Yes
• No way to tell

Tags

CCSS.HSF-BF.B.4B

Find the inverse:  $f\left(x\right)=-4x-12$  

•  $f^{-1}\left(x\right)=4x-3$  

•  $f^{-1}\left(x\right)=-\frac{1}{4}x-3$  

•  $f^{-1}\left(x\right)=\frac{1}{4}x+3$  

•  $f^{-1}\left(x\right)=-4x-3$  

Tags

CCSS.HSF-BF.B.4A

Which is f ^-1(x)?

• f ^-1(x) = 5x + 3

• f ^-1(x) = 5x - 3

• f ^-1(x) = 5x - 15

• f ^-1(x) = 1/5(x) + 3/5

Tags

CCSS.HSF-BF.B.4A

If f(x) = x² - 3x and g(x) = 4x + 2, what is f(g(3))?

Tags

CCSS.HSF-BF.A.1C

 Which expression represents f(g(x) if
 $f\left(x\right)=x^2-3x+1$  and

 $g\left(x\right)=x+2$  

•  $x^2+x+5$  

•  $x^2-2x+3$  

•  $x^2-9x+5$  

•  $x^2+x-1$  

Tags

CCSS.HSF-BF.A.1C

If f(x) = 4x² - 4 and g(x) = -3x + 2, what is g(f(-1))?

Tags

CCSS.HSF-BF.A.1C