I WILL GIVE A MEDAL TO BEST ANSWER/BECOME A FAN.

A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y=-0.06x^2+9.6x+5.4 where x is the horizonal distance in meters from the starting point on the roof and y is the height, in meters, of the rocket above the ground. How far horizontally from its starting point will the rocket land? Round your answer to the nearest hundredth.

A)4.30 m
B)160.56 m
C)160.23 m
D)13.94 m

Question

I WILL GIVE A MEDAL TO BEST ANSWER/BECOME A FAN.

A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y=-0.06x^2+9.6x+5.4 where x is the horizonal distance in meters from the starting point on the roof and y  is the height, in meters, of the rocket above the ground.  How far horizontally from its starting point will the rocket land? Round your answer to the nearest hundredth.

A)4.30 m
B)160.56 m
C)160.23 m
D)13.94 m

mathmale · Answer

Nicole:  Please understand that you may NOT ask for "best answer!"  You may ask for guidance towards finding your own answer, but you are forbidden to ask for answers and other users are forbidden to give you answers with no work on your part.

richyw · Answer

Well, you need to start with what you know. When the rocket is on the ground, it will be at a height of 0m right?

anonymous · Answer

|dw:1396166633140:dw|
at x max. vertical distance will be 0
so put y=o
and solve for x 
and it'll be the answer