Hi
Standard Form of an Equation of an Hyperbola opeing right and left is
where Pt(h,k) is a center with vertices 'a' units right and left of center.
x^2/4-y^2/25=1 C(0,0) with vertices V(-2,0) and V(2,0) - the x-intercepts
Foci(c=
: F(-5.3851,0) and F(5.3851,0)
Asymptotes: y = ± (5/2)x