How do you find all the critical points to graph #x^2/9 - y^2/16 = 1# including vertices?
The above equation shows a horizontal hyperbola with horizontal semi axis
The center of hyperbola
The vertices of given hyperbola are
Asymptotes of given hyperbola
Specify all the four vertices of hyperbola with center at origin & draw both the asymptotes. Then draw both the horizontal branches of hyperbola