Saturday

August 30, 2014

August 30, 2014

Posted by **kennedy** on Tuesday, September 15, 2009 at 6:34pm.

a)express the total cost as a fucntion of the number of broken nails.

b)What is the slpe of this fucntion and what does it represent?

c)Another salon charges $6 per nail for a fill regardlesss of the number broken nails. How many nails would have to be broken to make it more economical to go to Martha and Garce's salon?

- precalculus -
**bobpursley**, Tuesday, September 15, 2009 at 6:47pmcost=A*number nails + fixed cost

Can you take it from here?

The easy way is to notice A is the slope, or 8dollars/4nails or 2dollars/nail.

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