The minimum point has the coordinates (0.5,-2). Let's mark it! Since it is a minimum the curve will go upwards on both sides.
The zeros are x=-1 and x=2. That is where the graph crosses the x-axis. We extend the blue graph so that it intersects the x-axis at the proper places.
We will begin by marking the zeros in a coordinate system.
The y-intercept is (0,2). Let's also mark this point. We then draw a parabola through the points.