(20 points) We do the linear regression on three points (0.5, 1), (2, 2.5), and (3, 3). Please calculate the SSES of the four following linear regression based on the definition SSE =(-)2. Write the Python code to output the major steps and results. (a) y=x+0.5 (b) y=x+1 (c) y 0.8*x+0.3 (d) y = 0.8*x+0.7