How do you graph the equation y = -3x + 15?

a) plot the point (15,0). then go down 3 right 1 to plot the next point.

b) plot the point (0,15). then go down 3 left 1 to plot the next point.

c) plot the point (0,15). then go down 3 right 1 to plot the next point.

d) plot the point (15,0). then go down 1 right 3 to plot the next point.