25 POINTS!! help as soon as possible, please! I am timed and need this answer to help me pass my math class!


You began membership in a new health and fitness club that has access to a dietician and personal trainer. They help you develop a special eight-week diet and exercise program. The data in the following table represents your weight, w, as a function of time, t, over an eight-week period.

Time (weeks)

0

1

2

3

4

5

6

7

8

Weight (lb)

150

144

143

141

140

137

137

132

129


Using Delta notation, determine the average rate of change of weight over the last four weeks of the program. (include weeks 4 and 8 in your calculations)