SOLUTION: As a painter begins work, one fourth of a house has already been painted. Eight hours later, the house is two-thirds painted. Calculate the painter’s work rate (i.e.slope).

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Question 70192: As a painter begins work, one fourth of a house has already been painted. Eight hours later, the house is two-thirds painted. Calculate the painter’s work rate (i.e.slope).
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
As a painter begins work, one fourth of a house has already been painted. Eight hours later, the house is two-thirds painted. Calculate the painter’s work rate (i.e.slope).
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You have two points involving (time,work done):
They are (0,1/4) and (8,2/3)
The slope relates (job done / time) or rate.
slope= [(2/3)-(1/4)]/[8-0]= (5/12)/8 = 5/96 = 1job/19 1/5 hrs
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Cheers,
Stan H.