Question

Evaluate the function.
f(x)=2x^2
Find f(−3)

Answer 1

f(-3) = 18

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) = 2x²

Step 2: Evaluate

1. Substitute in x [Function f(x)]: f(-3) = 2(-3)²
2. Exponents: f(-3) = 2(9)
3. Multiply: f(-3) = 18