SOLUTION: Given the cost function, C(x), and the revenue function, R(x), find the number of units x that must be sold to break even. C(x) = 84x + 2160 R(x) = 108x a) 92 units b)

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons  -> Linear Equations Lesson -> SOLUTION: Given the cost function, C(x), and the revenue function, R(x), find the number of units x that must be sold to break even. C(x) = 84x + 2160 R(x) = 108x a) 92 units b)      Log On

You should find the value of x from the break-even equation


    C(x) = R(x),


which is


    84x + 2160 = 108x.


The solution is  x =  = 90.


ANSWER.  The number of units is 90.