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

Answer 1

x = 1

Reason: A line perpendicular to the x-axis is vertical, and vertical lines have equations of the form x = constant (here x = 1).