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v The scatter plot shows the average monthly temperature, x, and a family's monthly heating cost, y, for 23 different months. (a) Write an approximate

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v The scatter plot shows the average monthly temperature, x, and a family's monthly heating cost, y, for 23 different months. (a) Write an approximate equation of the line of best t for the data. It doesn't have to be the exact line of best t. (b) Using your equation from part (a), predict the monthly heating cost for a month with an average temperature of 25 F. Note that you can use the graphing tools to help you approximate the line. A v ' m"- 9 '\\ 90" xx m" x {a} Write an approximate equation of the llne of best fit. x x x x o ? Monily in" x x , J' = heating cost 60" - x X x - (in dollars) 50" x x (b) Using your equation from part (a), predict the monthly heating cost for a month with an average temperature of 49.. X 25 F. X so" x x x X '3 at." x xx 10\" X I l l l l l l l l l . >- 9 10 30 so 40 so so .10 so 90 mo

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