Answer
graph 3
Work Step by Step
Lets find $t$
When $x=0$
$t^{3}-2t=0=t\left( t^{2}-2\right) =0\Rightarrow t_{1}=0;t_{2}=\sqrt {2}$
And y when $x=0$
$y_{1}=t^{2}_{1}-t=0;y_{2}=\left( \sqrt {2}\right) ^{2}-\sqrt {2}=2-\sqrt {2}\neq 0$ so we see that there are only two $y$ values when $x=0$ and graph passes from origin ( becouse $y_{1} =0 $ when $x=0$ )
so graph 3 fits only
