Question 335139: Let X be the driving time (in hours) since a person has fueled up his car, and let Y be the number of gallons of gas in the car's gas tank. Assume that the equation y=-3X+18 describes the relationship between X and Y.
Question: What does the variable y represent? what is the unit of y?
Write the equation that describes the relation between the variables.
Find the X-intercept and the Y-intercept. Show the algebra.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Let X be the driving time (in hours) since a person has fueled up his car, and let Y be the number of gallons of gas in the car's gas tank.
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Assume that the equation y=-3X+18 describes the relationship between X and Y.
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Question: What does the variable y represent? # of gallons of gas in the tank.
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what is the unit of y? gallons
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Write the equation that describes the relation between the variables.
y = -3x+18
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Find the X-intercept and the Y-intercept. Show the algebra.
x-intercept = ?
Let y = 0 ; then x = 6
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y-intercept = ?
Let x = 0 ; then y = 18
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Cheers,
Stan H.
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