Determine whether AB and CD with the given coordinates would be parallel, perpendicular, or neither.
3. A(-5,3), B(-5, 7), C(1,9), D(-10,9)
Slope of AB=
Slope of CD=

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters