Function Notation
Evaluating
Example 2
Evaluate f(2x-1) = 3x - 4.
Step 1. Substitute the contents of the parentheses for x.
f (2x-1) = 3(2x-1) - 4
Step 2. Use the Distributive Property.
3?2x + 3?(-1) - 4
Step 3. Simplify.
6x - 3 - 4
6x - 7
f (2x-1) = 6x - 7