The fuel costs for an electric bike can be represented by the equation y=0.1x for y dollars and x miles. The graph below shows the cost of fuel used to drive a scooter.
a. What is the rate of change for the electric bike?
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b. What is the rate of change for the scooter?
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c. Which means of transportation is the better choice, financially?
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d. If a graph was drawn for the bike, which of the two means of transportation would have a steeper slope?
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e. Which of these two relationships is proportional?
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