well, just solve for x in
-0.01x^2 + 130x - 180000 = 174900
x = 3900 or 9100
A company has determined that the profit, in dollars, it can expect from the manufacture and sale of tennis racquets is given by P = −0.01x2 + 130x − 180,000. How many racquets should the company manufacture and sell to earn a profit of $174,900
1 answer