SOLUTION: The Unique Shoppe sells personalized telephones. Its weekly cost function is C(x) = 25x + 650. At the break-even point, x = 65 phones per week. What is the revenue function R(x)?

Algebra ->  Finite-and-infinite-sets -> SOLUTION: The Unique Shoppe sells personalized telephones. Its weekly cost function is C(x) = 25x + 650. At the break-even point, x = 65 phones per week. What is the revenue function R(x)?      Log On


   

Question 1131656: The Unique Shoppe sells personalized telephones. Its weekly cost function is
C(x) = 25x + 650.
At the break-even point, x = 65 phones per week. What is the revenue function R(x)?
R(x) =


Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
At break-even, +R%28x%29+=+C%28x%29+
+x+=+65+
+C%2865%29+=+25%2A65+%2B+650+
+C%2865%29+=+1625+%2B+650+
+C%2865%29+=+2275+
and
+R%2865%29+=+m%2Ax+%2B+b+
+m%2A65+%2B+b+=+2275+
+m+=+%28+2275+-+b+%29%2F65+
+R%28x%29+=+%28+%28+2275+-+b%29%2F65+%29%2Ax+%2B+b+
Where +b+ is any number