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Mathematics 7 Online
OpenStudy (anonymous):

maria's new car cost $280 per month for car payments and insurance. She estimates that gas and maintenance cost $0.15 per mile. a. Express her total monthly cost as a function of the miles driven during the month. b. What is the slope of the graph of the cost function?

OpenStudy (gw2011):

Let x=miles Total Monthly Cost=0.15x+280 The slope of an equation is the coefficient of x which in this case would be 0.15

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