Mathematics, 15.04.2021 07:30 chrisroman152

By the end of February, Rachel's family had used 7,800kilowatt-hours (kWh) of electricity since they had moved in. On average, her family uses 900kWh of electricity every month. Let xx represent the number of months since the end of February and let yy represent the electric meter reading, in kWh.

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By the end of February, Rachel's family had used 7,800kilowatt-hours (kWh) of electricity since they...