Number 2 out if 15 this is a lot

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Two numbers have a sum of -19. one number is x. what expression represents the other number?

Identify the parent function that can be used to graph the function f(x)=3(x-9)2