Question

What is f(-2) of the function given below? *
f(x) = 3x2 - 4x + 1

Answer 1

f(-2) = 21

Explanation:

Step 1: Define

f(x) = 3x² - 4x + 1

f(-2) is x = -2

Step 2: Substitute and Evaluate

f(-2) = 3(-2)² - 4(-2) + 1

f(-2) = 3(4) + 8 + 1

f(-2) = 12 + 9

f(-2) = 21