Question

Find f(-2), if f(x)=-3x^2-5x+11

Answer 1

f(-2) = 9

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) = -3x² - 5x + 11

f(-2) is x = -2

Step 2: Evaluate

1. Substitute in x: f(-2) = -3(-2)² - 5(-2) + 11
2. Exponents: f(-2) = -3(4) - 5(-2) + 11
3. Multiply: f(-2) = -12 + 10 + 11
4. Add: f(-2) = -2 + 11
5. Add: f(-2) = 9