1) y=-2/3x+490
2) to graph the equation y=-2/3x+490 I would start on the y axis and plot a point on (0,490). Next I would go down 2 right 3 and plot another dot. Now I would go back to the original point and go up 2 left 3 and plot a point. Finally I would finish by drawing a line with two arrows.
3) f(x)=-2/3x+490