Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below.

Hoursspentstudying,x	0	1	2	3	4	6		(a) x=2 hours	(b) x=4.5 hours
Test score, y	38	45	51	47	61	69		(c) x=12 hours	(d) x=1.5 hours