The scatter plot shows the time spent texting x and the time spent exercising y by each of 25 students last week a Write an approximate equation of the line of best fit for the data It doesn t have to be the exact line of best fit b Using your equation from part a predict the time spent exercising for a student who spends 4 hours texting Note that you can use the graphing tools to help you approximate the line Time spent exercising in hours 10 9 8 x 7 6 5 y 4 3 2 1 0 x 1 X X 12 X X X X X X 4 5 X X 6 X X 7 Time spent texting in hours x X X X X 8 9 x X X 10 X X S a Write an approximate equation of the line of best fit y 0 b Using your equation from part a predict the time spent exercising for a student who spends 4 hours texting hours X