Set 8: Linear Functions

Explanation

Answer: A

Convert $x - y = 0$ to slope-intercept form.

$y = x$

✓ Correct

$y = -x$

$y = x - 1$

$y = -x + 1$

Detailed Explanation

Choice A is correct. Choice A is the correct answer. Isolate $y$ . 1. Add y: $x = y$ . 2. Rewrite: $y = x$ . Strategic Tip: This is the parent linear function. Choice B is incorrect because sign error. Choice C is incorrect because extra term. Choice D is incorrect because sign error and extra term.

Key Steps:

•

The correct answer is $y = x$

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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