1) A fireworks rocket is launched from a hill above a lake. The rocket will fall into the lake after exploding at its maximum height. The rocket's height above the surface of the lake is given by g(x)= -16x + 64x+80. What is the maximum height of the rocket? Hint: Find the vertex. This parabola opens down, so the Vertex represents a maximum. The y-coord of the vertex is the height above ground.