8

Set 2: Exponential Functions (Advanced)

Explanation

Answer: D

PROBLEM

Recent studies show that simplify: 4 to the power of (-1). Express as a fraction 1/n.

Simplify: 4 to the power of (-1). Express as a fraction 1/n.

A.

1/5

B.

4

C.

1/3

D.

1/4

✓ Correct

Detailed Explanation

[Variation 1] Choice D is the best answer. 4 to the power of (-1) = 1/4 to the power of 1 = 1/4

Why others are wrong:
A: 1/5 is incorrect because it does not satisfy the equation.
B: 4 is incorrect because it does not satisfy the equation.
C: 1/3 is incorrect because it does not satisfy the equation.