That parabola equation is already in standard form, allowing you to read enough information to begin sketching its graph. The vertex is (-4,-1), and the vertex is a minimum (as we know based on the sign of the coefficienton the square term being positive 1). Let y=0 and solve for x to find the x intercepts:
or as x intercepts.
but you could choose a couple other points to help get a better sense of the size of the parabola.