Question

If f(x) = 4x + 5, what is the value of f(-3)?

Answer 1

Answer:

3. -7

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

• Functions
• Function Notation

Step-by-step explanation:

Step 1: Define

Identify

f(x) = 4x + 5

f(-3) is x = -3 for f(x)

Step 2: Evaluate

1. Substitute in x [Function f(x)]:                                                                          f(-3) = 4(-3) + 5
2. Multiply:                                                                                                             f(-3) = -12 + 5
3. Add:                                                                                                                   f(-3) = -7