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(a): How many miles does the train travel per gallon?
(b):What is the slope of the graph?

(a): How many miles does the train travel per gallon? (b):What is the slope of the-example-1

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since the graph has direct variation as data in x axis increases y also increases.

so we need to find how many miles travelled per galloon .

we distance travelled per gallon =total distance travelled/galoons of fuel used.


Distance travelled per gallon=200 miles/400 gallons=0.5 litres travelled per gallon

for part b) slope=rise/run


m=(y2-y1)/(x2-x1)


image


m=(400-0)/(200-0)=2

slope of the graph is 2

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