posted by Ruth .
Annual profit in thousands of dollars is given by the function, P(x) = -.1x2 + 50x - 300, where x is the number of items sold, x ¡Ý 0.
1.describe the meaning of the number -.1 in the formula
2.describe the meaning of the number -300 in the formula
3.find the profit for 5 different values of x