Honestly confused I don’t know what to do

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?

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test