Question

Find f(3) for f(x)=−5x−2

A. -10

B. -15


C. 13


D. -17

Answer 1

f(3) = -17

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

• Function Notation

Explanation:

Step 1: Define

f(x) = -5x - 2

f(3) is x = 3

Step 2: Evaluate

1. Substitute in x: f(3) = -5(3) - 2
2. Multiply: f(3) = -15 - 2
3. Subtract: f(3) = -17