1

Set 2: Linear Functions (Advanced)

Explanation

Answer: A

Find the slope of the line 5x−y=105x - y = 10.

A.

55

✓ Correct
B.

−5-5

C.

15\frac{1}{5}

D.

1010

Detailed Explanation

Choice A is correct. Choice A is the correct answer. Isolate yy. 1. Subtract 5 x: −y=−5x+10-y = -5 x + 10. 2. Multiply by -1: y=5x−10y = 5 x - 10. 3. Slope: 55. Strategic Tip: Slope m=−A/B=−5/(−1)=5m = -A/B = -5/(-1) = 5. Choice B is incorrect because sign error. Choice C is incorrect because reciprocal error. Choice D is incorrect because intercept error.

Key Steps:

•

The correct answer is 55

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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