which of the following is the equation of a line that passes through the point (1,2) and is parallel to the x-axis

Question

a. x=1

b. x=2

c. y=1

d. y=2

Answer 1

A line that is parallel to the x-axis is a horizontal line. In this case, the horizontal line passes through a point, (1,2). All points on a horizontal line will have the same y value. Therefore, y=2  for every point on this line and that is the equation of the line.