Set 3: Linear Functions (Intermediate)

**Choice C is the best answer.** Perpendicular slope = -1/2 = -0.5

Explanation

Answer: C

PROBLEM

What is the slope of a line perpendicular to y = 2x + 1?

-2

-0.5

✓ Correct

0.5

Detailed Explanation

Choice C is the best answer. Perpendicular slope = -1/2 = -0.5

Why others are wrong:

A: 2 is incorrect because it does not satisfy the equation.

B: -2 is incorrect because it does not satisfy the equation.

D: 0.5 is incorrect because it does not satisfy the equation.