Inverse Functions

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

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

• f ^-1(x)

• f ²(x)

• f '(x)

• f ⁺(x)

What are the missing values if g(x)=f^-1(x)?

• (9,-5)

• (-9,-5)

• (5,9)

• (-9,5)

• f^-1(x) = 4x + 7

• f^-1(x) = -4(x-7)

• f^-1(x) = -4x - 7

• f^-1(x) = 4(x+7)

Are these the graphs of two inverse functions?

• Yes

• No

• No way to tell

An ​ (a)   takes a previously found result ( a y value) and returns it to its original value (x value). This means you are ​ (b)   a function

• function

• inverse

• 2 or more

• undoing

Are the blue and red graphs inverse functions?

• yes

• no

• no way to tell

Is the inverse function found correctly?

• yes

• no