Question

Evaluate f(x) = x2 – 12 when x = 5

Answer 1

Answer:

13

Step-by-step explanation:

replace the x with 5.

5^2-12=

25-12=13

Answer 2

Answer:

f(5) = 13

General Formulas and Concepts:

Pre-Algebra

• Order of Operations: BPEMDAS

Algebra I

• Function notation and substitution

Step-by-step explanation:

Step 1: Define

f(x) = x² - 12

x = 5

Step 2: Evaluate

1. Substitute:                   f(5) = 5² - 12
2. Exponents:                  f(5) = 25 - 12
3. Subtract:                      f(5) = 13