Megan gets ready to launch the same rocket from a platform 21 feet above the ground with the same initial velocity. how long will the rocket stay in the air this time?
a. write a function that represents the rocket's path for this launch.
b. factor the corresponding equation to find the values for t when h is zero.
c. erin says that the roots of the equation are t = 5.25 and t= -20.25 and that the rocket will stay in the air 5.5 seconds. megan says she is wrong. who is correct? how do you know?