An electricity company charges its customers a base rate of $10 a month, plus 6 cents per
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An electricity company charges its customers a base rate of $10 a month, plus 6 cents per kilowatt-hour (kWh) for the first 1200 kWh and 7 cents per kWh for all usage over 1200 kWh. Express the monthly cost E as a function of the amount x of electricity used. Then graph the function E for 0 ≼ 5 x ≼ 2000.
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For the first 1200 kWh Ex 10 006x ...View the full answer
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