5. Scatterplots and curve fitting: The following table represents the average cost of a gallon of regular unleaded gasoline in different years. Predict the cost per gallon of regular gasoline without back for 2011 but using the scatterplot of the data and the straight line equation fit the data. Year------------------------------- 1999--------------2001-- ------------------2005-----------2007------------------- ----- 2008 Price per gallon: ($) 1.17------------------------------ 1.64------------------ --------- 2.48-------------------- 2.93------------------- ------- 4.15