Question

Find f(5) for f(x)=1/4(2)^x
O A. 4
O B. 32
C. 2
O D. 8

Answer 1

D. 8

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

Explanation:

Step 1: Define

f(x) = 1/4(2)ˣ

f(5) is x = 5 for function f(x)

Step 2: Evaluate

1. Substitute in x [Function]: f(5) = 1/4(2)⁵
2. Exponents: f(5) = 1/4(32)
3. Multiply: f(5) = 8