An electricity company charges its customers a fixed base charge of $8 a month, plus 12 cents per kilowatt-hour (kWh) for the first 500 kWh, 13 cents per kWh for the next 500 kWh, and 16 cents for all additional kWh. (a) Express the monthly cost E as a function of the amount x of electricity used. (b) Graph the function E for 0 ≤ x ≤ 2000. (c) Explain how your graph represents your function E.

Q: 200 (0, 180) 150 (4, 133.2) (8, 98.57) 100 (12, 72.94) (16, 53.98) 50 0- 2 4 8 10 12 14 16 18 20…

A: The given graph is

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