Slope can be found by using the formula: y2-y1/x2-x1
So let's see.. (1,20) (25,4)
4-20/25-1
-16/24 or -2/3 is the slope :D
and the y-intercept according to your line is approximately -21.
So the final equation: y=-2/3x - 21
YAY!! We are done! XD
