The graph shows the relationship between the amount of change given from a $10 bill and the number of bagels purchased. A graph shows number of bagels labeled 1 to 10 on the horizontal axis and change given (dollar sign) on the vertical axis. A line decreases from 0 to 10. What function represents the amount of change given from a $10 bill, f(x), based on x, the number of bagels purchased? f(x) = + 10 f(x) = + 10 f(x) = + 10 f(x) = + 10