{(6,4),(7,−3),(−4,3),(8,−3)}, which point if added would not create a function?

What are the soultion(s) to the quadratic equation 40- x^2=0

How is the number of vertices for a prism related to the name of the prism

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