Question

A hyperbola with center at (0, 0), with x-intercepts at (4, 0) and (-4, 0), with b = 1, and opening horizontally has the equation..?

Answer 1

3rd one

Answer 2

to get answer plug in x=4

Answer 3

what about this?

Answer 4

since b=1
also its given that
a=4 (x axis intecept)
the equation of hyperbola opening horizantaly centered at the origin is
\[\Large \frac{x^2}{a^2}-\frac{y^2}{b^2}=1\]
just put a=4 and b=1 to get the equation