Set 14: Linear Functions

Explanation

Answer: A

Find the slope of a line perpendicular to $x = 2$ .

$0$

✓ Correct

Undefined

$2$

$-2$

Detailed Explanation

Choice A is correct. Choice A is the correct answer. Perpendicular to vertical. 1. Original: Vertical. 2. Perpendicular: Horizontal. 3. Slope: 0. Strategic Tip: Perpendicular to undefined is 0. Choice B is incorrect because parallel. Choice C is incorrect. Choice D is incorrect.

Key Steps:

•

The correct answer is $0$

Why others are wrong:

B: Choice B is incorrect and may result from a calculation error.

C: Choice C is incorrect and may result from a calculation error.

D: Choice D is incorrect and may result from a calculation error.

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