Answer
$y=-\dfrac{3}{4}x$
(see graph below)
Work Step by Step
A value of $k$ where $
-1\lt k\lt -\dfrac{1}{2}
$ is $k=-\dfrac{3}{4}.$ Substituting $
k=-\dfrac{3}{4}
$ in the direct variation model, $y=kx,$ results to the direct variation equation
\begin{align*}
y=-\dfrac{3}{4}x
.\end{align*}
Using the table of values below, the graph of the direct variation equation above is derived.