Based on the graph the car requires 2.5 gallons of fuel to travel 100 miles.
Given:
The graph shows a proportional relationship between the distance a car travels and the fuel it consumes.
Distance (miles) Fuel(gallons)
0 0
40 1
80 2
120 3
160 4
200 5
240 6
280 7
From the table:
1 gallon fuel = 40 miles
1 mile = 1/40 gallon fuel
multiply by 100 on both sides
100 miles = 100/40 gallons fuel
100 miles = 5/2 gallons fuel
100 miles = 2.5 gallons fuel.
Therefore the car requires 2.5 gallons of fuel to travel 100 miles.
Learn more the distance and fuel here:
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