For the graph y = 12 find the slope of a line that is perpendicular to it and the slope of a line parallel to it. Explain your answer with two or more sentences.
A graph of the line y = 12 has a slope equal to zero since it lies flat crossing the y-axis at point 12. The slope of the line perpendicular should be infinity since the line perpendicular straight up crossing the x-axis. The slope of the line parallel should be zero too.