Answer:
f(9) = -131
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Algebra I
Explanation:
Step 1: Define
f(x) = -12x - 23
x = 9
Step 2: Evaluate
- Substitute: f(9) = -12(9) - 23
- Multiply: f(9) = -108 - 23
- Subtract: f(9) = -131