Question

For f(x) = 5x+1, find f(x_ when x = 2 and when x = 3.

Answer 1

f(2) = 11

f(3) = 16

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) = 5x + 1

x = 2

x = 3

Step 2: Evaluate

x = 2

1. Substitute: f(2) = 5(2) + 1
2. Multiply: f(2) = 10 + 1
3. Add: f(2) = 11

x = 3

1. Substitute: f(3) = 5(3) + 1
2. Multiply: f(3) = 15 + 1
3. Add: f(3) = 16