An electricity company charges its customers a base rate of $10 a month, plus 6 cents
Chapter 1, Problem 66(choose chapter or problem)
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 as a function of the amount of electricity used. Then graph the function for E 0 x 2000.
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