Question

If f(x) = 2х2 +1, what is f(x) when x = 3?
оооо
19

Answer 1

f(3) = 19

Explanation:

Step 1: Define

f(x) = 2x² + 1

x = 3

Step 2: Substitute and Evaluate

f(3) = 2(3)² + 1

f(3) = 2(9) + 1

f(3) = 18 + 1

f(3) = 19