Answer
$ x=-\sqrt{y}$
Work Step by Step
Express t in terms of one variable and substitute it into the other equation.
$y=t\Rightarrow\quad t=y$
$x=-\sqrt{t} \Rightarrow\quad \fbox{$ x=-\sqrt{y} $}$
To graph, create a table using several values for $t$, and then calculate $(x(t), y(t)),$ plotting the points as you go. Join with a smooth curve, noting the direction in which $t$ increases.
