AR 12/11

The inverse has been reflected over which line?

• y = x
• x = 0
• y = 0
• x = -y

Tags

CCSS.HSF-BF.B.4B

What does it mean to find the inverse of a function?

• the x's and y's are switched
• the x's and y's are divided by 2
• the x's and y's are made negative
• the x's and y's are the same

Tags

CCSS.HSF-BF.B.4A

If the equation of f(x) goes through (1, 4) and (4, 6), what points does f^-1(x) go through?

• (1, 4) and (4, 6)
• (-4, -1) and (-6, -4)
• (-1, -4) and (-4, -6)
• (4, 1) and (6, 4)

Tags

CCSS.HSF-BF.B.4C

Find the inverse of  $y=x^2-5$  

• 
  

   $y=\pm\sqrt{x}+5$  

•  $y=\pm\sqrt{x-5}$ 

•  $y=\pm\sqrt{x+5}$  

•  $y=\pm\sqrt{x}-5$  

f(x) = {(3, 7), (4, -2), (5, -1), (8, 7)}
Is f^-1(x) a function?

• Yes
• No
• No way to tell

Tags

CCSS.HSF-BF.B.4C

f(x) = ∛x is the inverse of which function?

• Square root function
• Quadratic function
• Cubic function
• Exponential Function

Find the inverse of $f\left(x\right)=\left(x-6\right)^2$  

•  $f^{-1}\left(x\right)=\sqrt{x}+6$  

•  $f^{-1}\left(x\right)=\sqrt{x+6}$  

•  $f^{-1}\left(x\right)=\sqrt{x}-6$  

•  $f^{-1}\left(x\right)=\sqrt{x-6}$  

Tags

CCSS.HSF-BF.B.4A

Are the blue and red graphs inverse functions?

• Yes, the functions reflect over y = x

• No, they do not reflect over the x - axis.

• No way to tell from a graph

Tags

CCSS.HSF-BF.B.4B

Which is the inverse of the table?

• 
• 
• 
• 

Tags

CCSS.HSF-BF.B.4C

Find the inverse of  $f\left(x\right)=x^2-4$  

•  $f^{-1}\left(x\right)=\pm\sqrt{x+16}$  

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

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

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