4

Set 3: Exponential Functions (Advanced)

Explanation

Answer: B

PROBLEM

Recent studies show that simplify: 4 to the power of (-2). Express as a fraction 1/n.

Simplify: 4 to the power of (-2). Express as a fraction 1/n.

A.

16

B.

1/16

✓ Correct
C.

1/17

D.

1/15

Detailed Explanation

[Variation 1] Choice B is the best answer. 4 to the power of (-2) = 1/4 to the power of 2 = 1/16

Why others are wrong:
A: 16 is incorrect because it does not satisfy the equation.
C: 1/17 is incorrect because it does not satisfy the equation.
D: 1/15 is incorrect because it does not satisfy the equation.