In Exercises 4756, find the center and vertices of the ellipse and sketch its graph.

L6 - 11 Now You Try It (NYTI): The position function of a ball throw into the air with a velocityf0fsci 2 given by H(t)=4 0 tâˆ’16t where H(t)i sheegtofhealboetherund after t seconds. (a) Find the average velocity of the ball on the interval starting with t =2to the time 0.5sodsl,adtenealohei...