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A freight train is carrying goods across the country. The distance it has traveled varies directly with the number of gallons of fuel it has used. See the graph below.

A freight train is carrying goods across the country The distance it has traveled varies directly with the number of gallons of fuel it has used See the graph b class=

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Answer:

Step-by-step explanation:

The train uses

[tex]\frac{400gallons}{200miles}[/tex]

If you reduce that you get that the train uses

[tex]\frac{2gallons}{1mile}[/tex]

To find the slope of the line, we will use the 2 points on the coordinate plane where the graph goes through:  (0, 0) and (400, 200)

Applying the slope formula:

[tex]m=\frac{200-0}{400-0}=\frac{1}{2}[/tex]

Answer:

6 miles per gallon

slope = 6

Step-by-step explanation:

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