Mathematics

11 July, 14:01

Given this description of a real-life situation and its linear equation, interpret the y-intercept and the slope.

The amount of gasoline y (in gallons) left in your tank after you travel x miles is y=-120x+20.

The slope of

means the car uses 1 gallon of gas for every

miles driven.

The y-intercept of

means there is originally

gallons of gas in the tank.

+5

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