Find the slope of the line that passes through the pair of points (4.5, 13.5) and (–3.5, –9). a. 0.36 c. –1.26 b. 2.81 d. –0.4

Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.