Question

Find f(-3) for f(x) = 4(2)^x O A. -32 O B. 1/2 O C. -24 O D. 1/8

Answer 1

Answer:

B. 1/2

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) = 4(2)ˣ

Step 2: Evaluate

1. Substitute in x [Function f(x)]:                                                                           f(-3) = 4(2)⁻³
2. Exponents:                                                                                                        f(-3) = 4(1/8)
3. Multiply:                                                                                                             f(-3) = 1/2