1.8 Inverse Functions Flashcards
1
Q
What is the notation
A
f-1(x)
2
Q
Step #1 of Inverse functions
A
Replace f(x) with y
3
Q
Step #2 of Inverse functions
A
Switch x and y
4
Q
Step #3 of Inverse functions
A
Solve for y
5
Q
What “undoes” the function
A
its inverse
6
Q
What does a function have to do to prove both it and its inverse are a function?
A
Pass the horizontal and vertical line test
7
Q
to verify algebraically that two functions are inverses you do
A
f(g(x)) = x and g(f(x)) = x
