The graph shows the flow rate of water at a pumping station for one day.

(a) Approximate the maximum flow rate at the pumping station. At what time does this occur?
(b) Explain how you can find the amount of water used during the day.
(c) Approximate the two-hour period when the least amount of water is used. Explain your reasoning.

Transcribed Image Text:

Flow rate (in thousands of gallons per hour) 70 60 50 40 30 20 10 R + 2 4 + + 8 10 12 14 16 Hour (0 + + 6 + + + 18 20 22 24 midnight) t