Question: The graph shows the power consumption for a day in September in San Francisco. (is measured in megawatts; is measured in hours starting at midnight.)

The graph shows the power consumption for a day in September in San Francisco. (is measured in megawatts; is measured in hours starting at midnight.)
(a) What was the power consumption at 6 AM? At 6 PM?
(b) When was the power consumption the lowest? When was it the highest? Do these times seem reasonable?

800 600 400 200 3 6 9 12 15 18 21 t Pacific Gas & Electric

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