what is the rate change -3,2 -6,8

Answer 1

The rate of change between two points, (x₁,y₁) and (x₂,y₂), is just the slope of the line connecting the two points:

slope = (y₂-y₁) / (x₂-x₁)

Your two points are (-3,2) and (-6,8). Plug the x and y values from the two points into the slope formula and compute the answer.