(3 points) Find the least-squares regression line y = bo + bix through the points (-2, 1), (3, 9), (4, 13), (8, 18), (11, 26), and then use it to find point estimates y corresponding to x = 2 and x = 9. For this problem and to give you practice for the test, use the shortcut method to find bo given that b, = 1.87651821862348. For x = 2, y = For x = 9, y =