Evaluating
Example

Using the function below, determine f(10) and f(-2).

PiecewiseEx1-1

Step 1. Determine which function to use based on the domain values.

f (10) belongs in the top domain, so use the top function.
f
(-2) belongs in the bottom domain, so use the bottom function.

Step 2. Substitute the domain value into the correct function and solve.

PiecewiseEx1-2

Listen