What does adding or subtracting to x^2 cause a graph to do?

In the diagram of circle a what is m

Charlie tosses five coins.what is the probability that all five coins will land tails up.

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.