Question

F (x) = 4x² -4x

Find f (-7)

Answer 1

f(-7) = 224

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) = 4x² - 4x

f(-7) is x = -7

Step 2: Evaluate

1. Substitute in x: f(-7) = 4(-7)² - 4(-7)
2. Exponents: f(-7) = 4(49) - 4(-7)
3. Multiply: f(-7) = 196 + 28
4. Add: f(-7) = 224