Question

4. The diagram shows the path of a model rocket launched from the ground. It reaches a maximum altitude of 384 ft when it is above a location 16 ft from the launch site. What quadratic function models the height of the rocket?

Answer 1

Vertex form: -1.5(x-16)^2 +384

Explanation:

0=a(256)+384

Answer 2

You can think of it as y=-(x-16)^2 to give you an upside down parabola with the center point at x=16 then knowing that the parabola's center is at a point 384m above the ground you can just add that to the equation, giving you y=-(x-16)^2+384.