The function f(x) = -x + 2x + 6 is graphed in the xy-coordinate plane as shown. Based on the graph of the function, which of the following statements are true? Select all that apply.

How much money does ron have left each month after his fixed expenses? ron graduated from college five years ago. he recently bought a house, but shares it with a housemate who pays him $800 a month for rent and utilities. ron is putting a budget worksheet together so he will have a better idea of where his money is going and where he can save. enlarge