1. 3-4 Inverse Functions and Relations
Pre Calc A

2. Inverse Relations
Two relations are inverses iff one relation contains element (b, a) whenever the other relation contains (a, b)
ex: Graph the function y = x² and its inverse

3. Horizontal Line Test
Determines whether the inverse of a relation will be a function.

4. Ex 17:
Find the inverse of f(x) = x² - 4, is the inverse a function?

5. Inverse Functions
Two functions are inverses iff
and are both = x

6. Ex last one:
Given f(x) = 3x² + 7, find f-1 and verify that they are inverse functions