Question 1026984
a firework is launched from the top of a 216ft building with an initial upward velocity of 150 ft/sec 
 h(t)=-16t^2+vt+h
 t=time, h is initial height, v is the initial velocity in feet per second 
 1.what is the equation for this situation
 2.when will the firework land if it does not explode
 3.show a table for this situation so that it shows the height from time t=0 until it hits the ground
 4.calculate the axis of symmetry
 5.calculate the coordinates of the vertex
 6.explain why negative values of t and h(t) do not make sense for this problem
 7. graph the situation 

 on #3 for the table, I do not know how to solve for the 0 or for 1,2,3,4,5 etc..... because it is after the = sign. So PLEASE show work. ALSO,how did you calculate the axis of symmetry and the coordinates of vertex? I have a TI-84 graphing calculator and can not get #7 to graph on it. And I do not know why? And in #1, it is supposed to be -16t^2 and I have asked this same question twice. Both times the same tutor used -15t^2. I do not know if this was used on the problems to get the answers for the symmetry and vertex. If so, then those are not right either....... That's why I resubmitted this question. Besides, I don't just need the answers..... I need to know how to do it so I can show my daughter and she can know for the test....... Thank You!