Question

Given the function below, find f(-7)
f(x) = -2x -1

Answer 1

B

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) = -2x - 1

f(-7) is x = -7

Step 2: Evaluate

1. Substitute in x: f(-7) = -2(-7) - 1
2. Multiply: f(-7) = 14 - 1
3. Subtract: f(-7) = 13