Use the equation of the line of best fit, y = -0.73x+8.53, to answer the questions below. Give exact answers, not rounded approximations.
hours
(a) What is the predicted time spent exercising for a
student who spends 4 hours texting?
hours
(b) What is the predicted time spent exercising for a
student who doesn't spend any time texting?
hours
(c) For an increase of one hour in the time spent texting,
what is the predicted decrease in the time spent
exercising?