Set 2: Linear Functions (Intermediate)

**Choice B is the best answer.** Vertical lines have undefined slope

Explanation

Answer: B

PROBLEM

What is the slope of a vertical line?

undefined

✓ Correct

infinity

Detailed Explanation

Choice B is the best answer. Vertical lines have undefined slope

Why others are wrong:

A: 0 is incorrect because it does not satisfy the equation.

C: 1 is incorrect because it does not satisfy the equation.

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