he table shows the average weight og a type of plankton after several weeks.
Time (weeks) Weight (ounces)
8 0.04
9 0.07
10 0.14
11 0.25
12 0.49
What is the average rate of vhange in weight of the plankton from week 8 to week 12?
+980 (0.49 - 0.04)/(12 - 8) ..........(this is the total change over the 4 weeks)
0.45 ounces/4 weeks ..........(in 4 weeks it increases by 0.45 ounces)
0.1125 ounces/week .......... (so on average, from week 8 to 12, the weight changes 0.1125 ounces per week)
+980 (0.49 - 0.04)/(12 - 8) ..........(this is the total change over the 4 weeks)
0.45 ounces/4 weeks ..........(in 4 weeks it increases by 0.45 ounces)
0.1125 ounces/week .......... (so on average, from week 8 to 12, the weight changes 0.1125 ounces per week)
