Answer
The graph is as shown
Work Step by Step
Writing in standard form $\frac{y^2}{2^2}−\frac{x^2} {4^2}=1$
Vertices : $x=0$, $y^2=4$,
$(0;2)$, $(0;-2)$
Asymptotes: $y=+/−(\frac{b}{a})x,$
$y=0.5x$ and $y=−0.5x$
The graph is shown below