FINDING DISTANCE IN A COORDINATE PLANE Find the distance between the points in
a coordinate plane.
46. (-4, 7.8), (-4,-3.5)
47. (-2.63, 7), (1.85, 7)
48. (-1/2, -1), (5/8, -1)
49. (6, 2 1/3), (6, -5 2/9)
50. (-6.2, 1.4), (8.9, 1.4)
51. (7 1/7, 1 4/5), (7 1/7, -9/10)