Who has scratch on here ?

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

Match each inequality to the number line that represents its solution