Remember, you've got two ways you can double-check this answer to see if it's right:
Graph | and | on the same graph and | ||||
see if they're mirror images over the line y = x. (Easy -- since these are both lines.) |
Do it!
Find either | or |
(or both for practice!) |
*Note: This is just like ( f o g )( x ), but with different notation.
OK, here's the list of steps:
How to find the inverse of a function: STEP 1: Stick a "y" in for the "f(x)." STEP 2: Switch the x and y. STEP 3: Solve for y.
THEN, CHECK IT! |