Point A has coordinates (2,1). The x-coordinate of point B is 5. The distance between point A and point B is 5 units. Your friend says the coordinates of point B could be (6,4). What are the possible coordinates of point B?

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6