4.3 For the following four regression equations, explain what the slope and intercept a. wage = 2.05 + 1.32education, where wage is dollars earned per hour and educa- b. GPA = 1.14 + 023hours study, where GPA is measured in points and hours c. sleep 10.33 0.44work, where sleep is hours spent sleeping per night and d. savings 586+ 0.15salary, where savings is dollars saved in the bank and the mean tion is number of years the person went to school. study is the number of hours spent studying in a week. work is the number of hours worked per day salary is the number of dollars earned in a year