11MME Inverse Functions

What is teacher's name?

• Ms Ju

• Ms Zu

• Ms Zhu

• No ideaa!!

Find the inverse of the function
f(x) = 3x − 5

• f^-1(x)=3x +5

• f^-1(x)=3y-5

• f^-1(x)=3y+5

What is the equation of the axis of symmetry between a function and its inverse?

What is the best description?

• They are both functions, but not inverse functions.

• They are inverse functions.

• They are reflected over y=x, but they are not both functions.

• They are not reflected over y=x, and they are not both functions.

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

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

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

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

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

Which is f ^-1(x)?

• f ^-1(x) = 5x + 3

• f ^-1(x) = 5x - 3

• f ^-1(x) = 5x - 15

Are they inverse functions?

• Inverse Functions

• Not Inverse Functions

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