Q. Is the graph of this equation a horizontal or vertical line?x=7
Equation of line: Equation of line: x=7Which value remains the same, x or y?x=7 tells us that the value of x is always 7, regardless of the value of y. This means that for any point on the line, the x-coordinate is 7.
Value that remains the same: Determine the orientation of the line:Since the x-coordinate does not change but the y-coordinate can be any value, the line is parallel to the y-axis.Lines that are parallel to the y-axis are vertical lines.
More problems from Equations of horizontal and vertical lines