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Royal Tree Service Has Been Hired to Clear an Area xx

Question 41

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Royal Tree Service has been hired to clear an area of trees. If xx represents the number of hours they will work, where x>0x>0 , then the function defined by f(x)=125x+250f(x)=125 \llbracket x \rrbracket+250 gives the total cost in dollars.
(a) Using dot mode and the window [0,10][0,10] by [0,1500][0,1500] , graph this function on a graphing calculator.
(b) Use the graph to find the cost of a 7.5 hour workday.

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