Questions 16 and 17 (18 if you could ; p)

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?