Examine graph of given function by completing following parts:
f(x) = x^2 + x -6/ x^2 -1
1. Find x- and y-intercepts of graph. Write them as points.
2. Find the domain and vertical asymptotes, if any, of the function.
3. Write domain in interval notation.
4. Find horizontal or oblique asymptote, if any, of function.
5. Get additional points on graph.
6. Plot x- and y-intercepts, additional points, and asymptotes which you found on rectangular coordinate system and graph function. Sketch asymptotes using dashed lines.