Question

If f(x) = -3x-2, find the value of f(3)

Answer 1

f(3) = -11

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) = -3x - 2

Step 2: Evaluate

1. Substitute in x [Function f(x)]: f(3) = -3(3) - 2
2. Multiply: f(3) = -9 - 2
3. Subtract: f(3) = -11