point The table below shows Karen s distance during the marathon What is Brianna s rate of change for the first 2 hours of the race 28 28 24 22 20 lad 18 STOR 10 M 12 10 tance in Miles M M 2 O 0 1 2 3 4 5 Time In Hours 6 miles per hour 2 miles per hour 12 miles per hour 3 miles per hour 6 7 8 9 10