Question

Which of the equations below represents a line perpendicular to the y-axis?

O A.
y= 6x
B. y= -6
C.
x = 6
D.
y=x

Answer 1

i think that the answer is b. y=-6

Answer 2

B. y = -6

Explanation:

You can graph each line to see which one is horizontal since the y-axis is vertical. This would make the lines perpendicular since when a vertical and horizontal line meet, they form a 90-degree angle, which is by definition what perpendicular means.