Question

1. For the function f(x) = 3x + 1, find f(-2). (substitute -2 in for x)

Answer 1

Answer:

f(-2) = -5

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

Step-by-step explanation:

Step 1: Define

f(x) = 3x + 1

f(-2) is x = -2

Step 2: Evaluate

1. Substitute in x:                    f(-2) = 3(-2) + 1
2. Multiply:                               f(-2) = -6 + 1
3. Add:                                     f(-2) = -5