Hey what does 5+555+100xx2x2x2x3x4

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

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?

Which of the following graphs could represent a cubic function?