Set 12: Linear Functions

Explanation

Answer: A

Find the slope of the line $x = 5y - 10$ .

$\frac{1}{5}$

✓ Correct

$5$

$-5$

$-\frac{1}{5}$

Detailed Explanation

Choice A is correct. Choice A is the correct answer. Isolate $y$ . 1. Add 10: $x + 10 = 5 y$ . 2. Divide by 5: $y = \frac{1}{5}x + 2$ . 3. Slope: $\frac{1}{5}$ . Strategic Tip: Don't assume the number next to $y$ is the slope. Choice B is incorrect because it ignores division. Choice C is incorrect because sign error. Choice D is incorrect because sign error.

Key Steps:

•

The correct answer is $\frac{1}{5}$

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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