Question 410619
   <pre><font size = 3 color = "indigo"><b>
Hi 
{{{(y-k)^2/b^2 - (x-h)^2/a^2 = 1}}} where Pt(h,k) is a center  with vertices 'b' units up and down from center.
{{{y^2/9-x^2/4=1}}}
intercepts: (0,3) and (0,-3)
the foci: sqrt(4+9) = sqrt(13)= 3.6056
the asymptotes: y = ± b/a    | y = 3/2x and y = -3/2x
{{{drawing(300,300,    -6, 6, -6, 6,  grid(1),
circle(0, 3.6,0.2),
circle(0, -3.6,0.2),
graph( 300, 300,  -6, 6, -6, 6,0,1.5x,-1.5x, 3sqrt(1+.25x^2),-3sqrt(1+.25x^2)))}}}