Question

If f(x) = x² + 7, what is the value of f(4)?

Answer 1

f(4) = 23

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) = x² + 7

f(4) is x = 4

Step 2: Evaluate

1. Substitute in x: f(4) = 4² + 7
2. Evaluate exponents: f(4) = 16 + 7
3. Add: f(4) = 23