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Someone help and please explain clearly !

Someone help and please explain clearly !-example-1

1 Answer

4 votes

Answer:

Explanation:

(a) Your $160 is correct.

(b) No, this is not a proportional relationship, because the graph does not go through the origin. That, in turn, is because there is a fixed, up-front cost of $120.

(c) The total cost as a function of the number of months, m, is

TC(m) = $120 + ($40/month)m

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