A)suppose you are given (x,y) data pairs X= 2,3,5 Y= 4,3,9 Find the least squares equation for these data (round to four digits after the decimal) y=___+ ____ x B) now suppose you are given these (x,y,) data pairs X= 4,3,9 Y= 2,3,5 Find the least squares equation for these data (rounded to four digits after the decimal) y=____ +____ x C) solve your answer from part a for x (rounded to four digits after the decimal) X=___+_____y