Which statement is true about the graphs of the two lines y = -6 and x = The lines are perpendicular to each other because the graph of y=-6 is a horizontal line with a slope that is
undefined, and the graph of x = is a vertical line with a slope of 0.
The lines are perpendicular to each other because the graph of y = -6 is a vertical line with a slope that is
undefined, and the graph of x = is a horizontal line with a slope of 0.
The lines are perpendicular to each other because the graph of y = -6 is a vertical line with a slope of 0, and the
graph of x = 1 is a horizontal line with a slope that is undefined.
The lines are perpendicular to each other because the graph of y = -6 is a horizontal line with a slope of 0, and
the graph of x = 1 is a vertical line with a slope that is undefined.