Question 455188
A rental truck costs $50 plus $.50 per mile
A) write an equation that gives the cost of driving the truck x miles
this is what I came up with $50= .50 + x
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Ans: C(x) = 50 + 0.50x where x is the number of miles.
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B) Use the Intersection of graphs method to determine the number of miles that the truck is driven if the rental cost is $80.
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{{{graph(400,300,-10,100,-10,100,50+0.5x,80)}}}
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C) Solve part (b) numerically with a table of values.
C(x) = 50 + 0.50x 
If x = 55, C(55) = $77.50
If x = 60, C(60) = $80
If x = 65, C(65) = $82.50
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Cheers,
Stan H.
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