Inverse Functions Practice

What is the inverse of the points?

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

• (3,1)(4,2)(8,6)

• (-3,-1)(-4,-2)(-8,-6)

• (1,3)(2,4)(6,8)

• (-1,-3)(-2,-4)(-6,-8)

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

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

Tags

CCSS.HSF-BF.B.4A

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

• f^-1(x) = 4x + 7
• f^-1(x) = -4x + 28
• f^-1(x) = -4x - 7
• f^-1(x) = 4x + 28

Tags

CCSS.HSF-BF.B.4A

Find the inverse of the function. $f\left(x\right)=3x-5$  

•  $f^{-1}\left(x\right)=3x+5$  

•  $f^{-1}\left(x\right)=\frac{x}{3}+\frac{5}{3}$  

•  $f^{-1}\left(x\right)=3y+5$  

•  $f^{-1}\left(x\right)=\frac{x}{3}+5$  

Was the inverse function found correctly?

• no
• yes

Tags

CCSS.HSF-BF.B.4A

Find the inverse of  $f\left(x\right)=x^2-5$  

•  $f^{-1}\left(x\right)=\pm\sqrt{x}+5$  

•  $f^{-1}\left(x\right)=x^2+5$  

•  $f^{-1}\left(x\right)=\pm\sqrt{x+5}$  

•  $f^{-1}\left(x\right)=\pm\sqrt{x}-5$  

If f^-1(-25) = 7 then what is f(7) = 

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

Tags

CCSS.HSF-BF.B.4C

Are these graphs inverses?

• no

• yes

• no way to tell

Are the blue and red graphs inverse functions?

• yes
• no
• no way to tell

Tags

CCSS.HSF-BF.B.4B

Find the inverse. $f\left(x\right)=2x-2$  

•  $f^{-1}\left(x\right)=\frac{1}{2}x+1$  

•  $f^{-1}\left(x\right)=\frac{1}{2}x+2$  

•  $f^{-1}\left(x\right)=2x+1$  

•  $f^{-1}\left(x\right)=\frac{1}{2}x-1$