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Name: ______________________ Class: __________________ AU3: HW #4 – Writing Equations Date: __________________ 1 Write an equation in point-slope form for the line through the given point with the given slope. 12. 2,3; m 1 13. 4,7 ; m 3 2 2 14. 6,2; m 4 3 15. An ice cream shop is deciding how much to charge for a gallon of ice cream. The owner observes that the average number of customers is a linear function of the cost of a gallon of ice cream. The owner finds that when the cost is $2 the average number of customers is 140, and when the cost is $8 the average number of customers is 92. Write a linear function to model the relationship between the cost of a gallon of ice cream and the average number of customers per day. Explain the meaning of the slope and the y-intercept in the context of the problem. 3