A manufacturer sells video games with the following cost and revenue functions ( in dollars ) , where x is the number of games sold . Determine the...

A manufacturer sells video games with the following cost and revenue functions ( in dollars ) , where x is the number of games sold . Determine the interval ( s ) on which the profit function is increasing .C ( X ) = 0. 13 X 2 - 0. 00006 x}R ( X ) = 0. 84 4 X 2 - 0. 0002 X}Select the correct choice below and fill in any answer boxes within your choice .O A . The profit function is increasing on the interval ( s )\\ '( Type your answer in interval notation . Use a comma to separate answers as needed . )OB . The profit function is never increasing .