State the practical meaning of the slope and vertical intercept in the given situation.The cost, in dollars, of retaining the services of a computer repairman in Anchorville is given by 
where x is the number of hours worked.
A. -50 signifies the hourly rate, and 15 signifies the travel cost.
B. 15 signifies the hourly rate, and 50 signifies the overhead charge.
C. 65 signifies the cost for an on-site inspection.
D. 50 signifies the hourly rate, and 15 signifies the overhead charge.
Answer: D
Mathematics
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