Question

The water level in a retention pond started a 5 ft (60 in.) and decreased at a rate of 2 in./day during a 14-day drought. A tropical depression moved through at the beginning of the 15 day and proceed rain at an average rate of 2.4 in./day for 5 days. a. Write a piecewise - defined function to model the water level L(x) (in inches) as a function of the number of days x since the beginning of the drought. b. Graph the function.

Answer 1

Answer:

W = 60 - 2 * D     D is number of days D ≤ 14

W = 30 + 2.4(D - 14)     D is number of days > 14

Step-by-step explanation:

Water Level

W = 60 - 2 * D     D is number of days D ≤ 14

W = 30 + 2.4(D - 14)     D is number of days > 14

Day Water Level

0 60

1 58

2 56

3 54

4 52

5 50

6 48

7 46

8 44

9 42

10 40

11 38

12 36

13 34

14 32

15 34.4

16 36.8

17 39.2

18 41.6

19 44