# SOLUTION: I am needing help solving this word problem- these are too confusing to me The total profit (in dollars) for sales of x rowing machines is given by P(x)= -0.2^2 + 300x -200. W

Algebra ->  Algebra  -> Finance -> SOLUTION: I am needing help solving this word problem- these are too confusing to me The total profit (in dollars) for sales of x rowing machines is given by P(x)= -0.2^2 + 300x -200. W      Log On

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 Question 289364: I am needing help solving this word problem- these are too confusing to me The total profit (in dollars) for sales of x rowing machines is given by P(x)= -0.2^2 + 300x -200. What is the profit if 500 are sold? For what value of x will the profit be a at maximum? Thanks, JenAnswer by richwmiller(9135)   (Show Source): You can put this solution on YOUR website!Check you equation. There is something missing. Probably an x in the term -0.2^2 It should probably be -0.2x^2 Otherwise it is a straight line. so when you get the right equation, you should find the vertex. -b/2a here b is 300 a=-.2