Write the equation for this situation.The cost,c ...

Write the equation for this situation.The cost,c, in dollars of a car rental to 9 dollars plus 1/4 the miles driven.Then the equation and use the graph to determine the cost of the rental if the number of miles driven is 10.Please show all work

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c = 9 + x/4 where x is the number of miles. 

(Note: That's the same as .25 per mile)

For a distance of 0 the charge will be 9 dollars.

For x = 10 then you can figure out c.

The graph looks like this:
graph%28300%2C200%2C-2%2C10%2C-2%2C20%2Cx%2F4+%2B+9%29
So, we simply put m = 10 in the above equation: c = 10/4 + 9 = 11.5

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