For the graph y = 1 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.

For the graph y = 1 find the slope of a line that is perpendicular to it have the slope m = of undefined because y = 1 is a horizontal line whose slope m = 0. So the perpendicular line to it are vertical lines. While the slope of the line parallel to it has a slope of 0.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.