Answer:

1) A cereal company finds that if it spends P 40,000 on advertising, then 100,000 boxes of cereal will be sold, and if spends P 60,000, then 200,000 boxes will be sold.

(a) Write a linear equation that relates the amount x spent on ads to the number y of boxes sold.

(b) How much advertising is needed to sell 300,000 boxes of cereal?

(c) Interpret the slope of a linear function.

2) A truck rental company charges P 30 to rent a truck for the day, plus an additional charge for mileage. The total cost of renting a truck and driving 100 miles P 65.

(a) Find a linear equation that relates the cost x of renting a truck to the number y of miles driven.

(b) Bonnie rents a truck, and her total cost was P 110.50. How many miles did she drive?

(c) Interpret the slope of a linear function.

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