Suppose you start with a full tank of gas (15 gallons) in your truck. After driving 4 hours, you now have 4 gallons left. If x is the number of hours you have been driving, then y is
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Suppose you start with a full tank of gas (15 gallons) in your truck. After driving 4 hours, you now have 4 gallons left.
If x is the number of hours you have been driving, then y is the number of gallons left in the tank.
At what rate is the volume of gas in the tank changing? State your answer as a reduced fraction.
1. ______ gallons per hour
2. Find an equation of a line in the form y = mx + b that describes the amount of gas in your tank.
y= ________
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