Which of the following linear functions would remain unchanged under a dilation of 2 about the origin?

1) y=-5x
It would be this one because even if you dilate it, it would remain unchanged because it passes through the origin (0, 0) and wouldn't change the equation. The rest have y intercepts and that would cause the equation to change.

Hope this helps :)

if my calculator is right it should be A

can you mark brainlest