what is the quadratic equation for this graph? will make brainiest if also tell me how to put into vertex from

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

Asquare is dilated by a scale factor of 1.25 to create a new square. how does the area of the new square compare with the area of the original square? a)the area of the new square is 1.25 times the area of the original square. b)the area of the new square is 2.50 times the area of the original square. c)the area of the new square is 1.252 times the area of the original square. d)the area of the new square is 1.253 times the area of the original square.

Asphere has a diameter of 10 in. what is the volume of the sphere?