bump need this real soon, because due online in an hour please tell me how to start/steps!
Find the equation of the line that provides the best least-squares fit to the points
(6, 23), (13, 15), (15, 8), and (21, 3).
Fill in the blanks with a decimal approximation rounded to four decimal places.
(Your rounding must be mathematically correct for your answer to be scored as correct.)
how would you do this problem, please help!!