A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = 0.04x^2 + 8.3x + 4.3, where x is the horizontal 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? (1 point)
208.02 m
416.03 m
0.52 m
208.19 m

Question

A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = 0.04x^2 + 8.3x + 4.3, where x is the horizontal 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?  (1 point)
208.02 m
416.03 m
0.52 m
208.19 m

cwrw238 · Answer

0 = 0.04x^2 + 8.3x + 4.3  (as vertical height when rocket falls = 0)
solve this for x  using quadratic formula