Question

Evaluate w (-9).
w (n) = n2 +5

Answer 1

w(-9) = 86

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

w(n) = n² + 6

w(-9) is n = -9

Step 2: Evaluate

1. Substitute: w(-9) = (-9)² + 5
2. Exponents: w(-9) = 81 + 5
3. Add: w(-9) = 86