Answer
Writing in standard from : $\frac{x^2}{2^2}+\frac{y^2} {4^2}=1$
distance between the $y-intercepts$ is longer
Work Step by Step
The standard form of an ellipse is :$\frac{x^2}{a^2}+\frac{y^2} {b^2}=1$
$b\gt$$a$ , and so the distance between the $y-intercepts$ is longer