Question

Teresa and Elaine want to know who reads more pages per hour. Teresa keeps track of the number of pages she reads in a graph, and Elaine keeps track of how many pages she reads in a table. How many pages per hour does each girl read, and who reads at a faster rate? Teresa: pages per hour Elaine: pages per hour The person who reads faster is: (Type T for Teresa or E for Elaine) First-quadrant graph showing a ray from the origin through the points 0.5, 12), (1.5, 36), (2, 48), and (4, 96). Horizontal axis label is Time in hours. Vertical axis label is Pages read. Elaine’s Reading Log Time (h) 2.5 3 5 8 Pages read 70 84 140 224

Answer 1

Teresa :
(0.5,12)(1.5,36)
slope = (36 - 12) / (1.5 - 0.5) = 24/1 = 24 miles per hr

Elaine :
(2.5,70)(3,84)
slope = (84 - 70) / (3 - 2.5) = 14 / 0.5 = 28 miles per hr

Elaine reads at a faster rate