Please give me an explanation for this questions. Thanks! Find the equation of the regression line for the given data. Then construct a scatter plot...

Please give me an explanation for this questions. Thanks!

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.

Hours spent studying, x   Test score, y

0   41

1   43

2   51

3   50

5   62

5   73

a. x=4hrs

b. x=3.5hrs

c. x=13hrs

d. x=4.5hrs