10
algebra

Which equation represents a line with slope 1 passing through (0,−1)(0, -1)?

A

y=x−1y = x - 1

B

y=x+1y = x + 1

C

y=−x−1y = -x - 1

D

y=−x+1y = -x + 1

Correct Answer: A

Choice A is the correct answer. Slope-intercept form.

  1. Slope: m=1m = 1.
  2. Intercept: b=−1b = -1.
  3. Equation: y=1x−1→y=x−1y = 1x - 1 \rightarrow y = x - 1.

💡 Strategic Tip: Direct substitution.

Choice B is incorrect because sign error. Choice C is incorrect because slope error. Choice D is incorrect because slope error.

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Linear Functions Set 90