let y(t) represent the weight loss per week of a contestant on the Biggest Loser, where y is a differentiable function of t. the table shows the weight loss per week recorded at selected times.
time (week): 2, 4, 7, 8, 11
y(t) (pounds/week): 14, 12, 18, 14, 17
a. use the data from the table and a left Riemann sum with four subintervals. show the computation that lead to your answer.
b. what does your answer represent in this situation?