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Mathematics, 11.12.2019 23:31 cadez

Atub of water is emptied at a rate of 3 gallons per minute. the equation y –12 = –3(x – 1) models the amount of water remaining, where x is time (in minutes) and y is the amount of water left (in gallons). analyze the work shown below to determine the initial amount of water.

1. solve for the y-variable.

y – 12 = –3(x – 1)

y – 12 = –3x + 3

y = –3x +15

2. write the equation using function notation.

f(x) = –3x +15

the tub started with
gallons of water.

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Answers: 1

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