Hi


a = 13 and b = 4 slopes m = ± 4/13
Standard Form of an Equation of an Hyperbola opening right and left is:
with C(h,k) and vertices 'a' units right and left of center, 2a the length of the transverse axis
Foci are
units right and left of center along y = k
& Asymptotes Lines passing thru C(h,k), with slopes m = ± b/a
