Question 120303
what rate of change is different?


if the relation is linear, then the slope [(change in y)/(change in x)] between any two points is constant


from (-10,-7) to (20,5) __ x change is 20-(-10) or 30 __ y change is 5-(-7) or 12 __ slope is 12/30 or .4


pick any other pair(s) of points to see of the slope is constant






HINT -- it is