he graph shows a scatter plot for a set of data. image of a scatter plot with Money Saved on the x axis and Money Earned on the y axis, with points 1 comma 20, 3 comma 19, 5 comma 15, 7 comma 11, 9 comma 9, 11 comma 5 and 15 comma 3 Which of the following equations is the best model for a line of fit for the data?