##### Write a linear function?

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A trainer for a professional football team keeps track of the amount of water players consume throughout practice. The trainer observes that the amount of water consumed is a linear function of the temperature on a given day. The trainer finds that when it is 90 degrees the players consume about 220 gal. of water, and when its 76 degrees the players consume about 178 gallons of water.

Write a linear function to model the relationship between the gallons of water consumed and the temperature.

Apr 10th, 2015

The slope for the function graph is (220 - 178)/(90 - 76) = 42/14 = 3. Use the point-slope form of the linear equation: y - 178 = 3(x - 76) or y = 3x - 228 + 178 = 3x - 50.

Apr 10th, 2015

How would I explain the meaning of the slope in the context of the problem?

Apr 10th, 2015

The slope is the rate of change of the water consumed with the temperature. In fact, when the temperature rises by 1 degree the players consume extra 3 gallons of water during their practice.

Apr 10th, 2015

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Apr 10th, 2015
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Apr 10th, 2015
Dec 11th, 2016
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