Cari German uses gas to heat her home.She has accumulated the following information regarding her monthly gas bill and monthly heating degree-days. The heating degree-days value for a month is found by first subtracting the average temperature for each day from 65 degrees and then summing these daily amounts together for the month.MonthHeating Degree-DaysGas BillFebruary1,900$254April600$101The equation representing the relationship between the gas bill (Y) and heating degree-days (X) is
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