Question 902267: 17. At a TV repair shop, there is a uniform charge for any TV brought in for repair plus an hourly fee for the work done. For a TV that needed two hours of repair, the cost was $100. For a TV that needed one and a half hours of repair, the cost was $80.
a. Write an equation that can be used to find the cost of repair, y, when x hours of work are required. Write the given information as ordered pairs, (2, 100) and (1.5, 80).
b. What would be the cost of repairing a TV that requires 3 hours of work?
c. What does the coefficient of x in the equation that you wrote in a represent?
d. What does the constant term in the equation that you wrote in a represent?
Answer by richwmiller(17219)   (Show Source):
You can put this solution on YOUR website! one problem at a time
5 problem s per 24 hours
no similar problems
your second problem is similar to the first.
only the numbers change
y=mx+b
x=2 y=100
x=1.5 y=80
you have two points
find the equation of the line
100=m2+b
80=m1.5+b
or solve this system
depends what you are learning right now
there are many other ways to solve this
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