7
algebra

Which equation represents the y-axis?

A

x=0x = 0

B

y=0y = 0

C

y=xy = x

D

y=1y = 1

Correct Answer: A

Choice A is the correct answer. Definition of axes.

  1. Y-axis: All points on this vertical line have an x-coordinate of 0.
  2. Equation: x=0x = 0.

💡 Strategic Tip: The Y-axis is x=0x=0. The X-axis is y=0y=0.

Choice B is incorrect because it is the x-axis. Choice C is incorrect because it is diagonal. Choice D is incorrect because it is a horizontal line.