SOLUTION: A carpet store charges a flat fee for installation of carpet that is priced by the square yard. Susan had 12 square yards of carpet installed for a cost of $400. The equation y – 4

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Question 917595: A carpet store charges a flat fee for installation of carpet that is priced by the square yard. Susan had 12 square yards of carpet installed for a cost of $400. The equation y – 400 = 25(x – 12) models the revenue of the carpet store, where x is the number of square yards purchased and y is the total cost to the customer. Which function models the cost of buying x square yards of carpet if the customer also pays for installation?

f(x) = 25x – 388
f(x) = 25x – 700
f(x) = 25x + 100
f(x) = 25x – 412
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

+y++-400=+25%28x12%29 solve for y which is = f%28x%29

+y-400+=+25x+300
+y++=+25x+-+300%2B400
+y++=+25x%2B100
answer is: f%28x%29+=+25x+%2B+100