Question 424115
A company manufactures laptop computers that sells to retailers at $600.
 The cost of making x of these laptops for a month is given by the cost function
 C(x) = 350x + 215,000.
:
A. Find the function R(x) that gives the revenue from selling x laptops. (Your answer should be a linear function R(x) = ....)
That would be just be the number sold for $600
R(x) = 600x
:
B. Find the profit function P(x) for the above situation
The profit is: Revenue - the cost:
P(x) = 600x - (350x+215000)
Can be simplified
P(x) = 600x - 350x - 215000)
P(x = 250x - 215000
:
C. Find the break even point for the above situation.
 That is, how many laptops must they sell per month to break even? 
Break even occurs when: Rev = cost
600x = 350x + 215000
600x - 350x  = 215000
250x = 215000
x = {{{215000/250}}}
x = 860 computers have to be sold the break even