Which is the unit rate, k, in the proportional relationship y = kx shown in the table?

Given a table that represents the relation between (x) and (y):
We will find the unit rate (k) in the proportional relationship y = kx shown in the table
From the given equation:
[tex]\begin{gathered} y=kx \\ \\ k=\frac{y}{x} \end{gathered}[/tex]Choose the data of one raw to find (k)
so, from the first raw:
When x = -2, y = -1/2
[tex]k=\frac{-\frac{1}{2}}{-2}=\frac{1}{2\cdot2}=\frac{1}{4}[/tex]So, the answer will be k = 1/4