The table shows how far a distance runner has traveled since the race began. what is her average speed, in miles per hour, during the interval 0.75 to 1.00 hours?

Mr. jones determined that the equation y = 98 - 16/5 x could be used to predict his students' unit test scores, based on the number of days, x, a student was absent during the unit. what was the meaning of the y-intercept of the function? (by the way the 16/5 is a )