3
algebra

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

A

55

B

−5-5

C

15\frac{1}{5}

D

1010

Correct Answer: A

Choice A is the correct answer. Isolate yy.

  1. Subtract 5x: −y=−5x+10-y = -5x + 10.
  2. Multiply by -1: y=5x−10y = 5x - 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.

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Linear Functions Set 88