The table shows the calories burned during exercise. (picture of the table attached) which statement is true? a)the y-intercept of the function is (15, 75). b)the rate of change is 15 calories burned per minute. c)a linear function to model the calories burned, y, as a function of time in minutes, x, is y = 5x. d)an exponential function to model the calories burned, y, as a function of time in minutes, x, is y = 5x.