Set 13: Linear Functions (Intermediate)

Explanation

Answer: A

Convert $x = 4$ to slope-intercept form, if possible.

Not possible

✓ Correct

$y = 4$

$y = x - 4$

$y = 0x + 4$

Detailed Explanation

Choice A is correct. Choice A is the correct answer. Vertical lines. 1. Form: Slope-intercept is $y = mx + b$ . 2. Problem: Vertical lines have undefined slope ( $m$ ) and cannot be written as $y = ...$ . 3. Conclusion: Not possible. Strategic Tip: Vertical lines are the only lines that cannot be written in slope-intercept form. Choice B is incorrect because it is horizontal. Choice C is incorrect because it is diagonal. Choice D is incorrect because it is horizontal.

Key Steps:

•

The correct answer is Not possible

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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