The graph of a quadratic function is a parabola with a vertex, an axis of symmetry, intercepts and a maximum or minimum. Graph it by hand from a table or from vertex form, and complete the square to find the vertex. Replacing f(x) by f(x) + k, k f(x), f(kx) or f(x + k) shifts, stretches or flips the graph in ways you can predict. This week every feature of the graph is read in terms of the rocket's flight.