Questions on Logic: Finite and infinite sets answered by real tutors!

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Question 148054: A revenue function is R(x)=22x and a cost function is C(x)= -9x + 341. The break-even point is:
a. (17, 374)
b. (242, 9)
c. (11, 242)
d. (31.5, 661.5): A revenue function is R(x)=22x and a cost function is C(x)= -9x + 341. The break-even point is:
a. (17, 374)
b. (242, 9)
c. (11, 242)
d. (31.5, 661.5)
Answer by nabla(410) About Me  (Show Source):
You can put this solution on YOUR website!
We want R=C.
So
22x=-9x+341
0=-31x+341
0=-31(x-11)
So x must=11.

R(11)=22*11=242.
So, (11,242).