Question

Which of the following lines is perpendicular to the x-axis?(1 point)
Responses

y=1

y is equal to 1

y=x

y is equal to x

x=1

x is equal to 1

x=−y

x is equal to negative y

Answer 1

x = 1

Reason: x = 1 is a vertical line, and vertical lines are perpendicular to the horizontal x-axis. (y = 1 is horizontal; y = x and x = −y are diagonal.)