Question

If f(x)=8x^2-1 then what is f(2)
Show work

Answer 1

f(2) = 31

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Algebra I

Functions

• Function Notation

Explanation:

Step 1: Define

Identify.

f(x) = 8x² - 1

Step 2: Evaluate

1. Substitute in x [Function f(x)]: f(2) = 8(2)² - 1
2. [Order of Operations] Simplify: f(2) = 31