A direct relationship shows that as x increases, y also increases.
For a.
It shows that as x increases, y also increase and this might be a direct variation.
Let's the option for the given table.
[tex]\begin{gathered} y=40x \\ \text{when x = }0.2,\text{ y = }8 \\ y=40(0.2)=8 \\ \text{when x = }0.5,\text{ y = 20} \\ y=40(0.5)=20 \end{gathered}[/tex]Since it satisfies the option, the answer is direct and y = 40x
For b.
It shows that as x increase, y decrease and this might be an inverse variation, but inverse variation in the option is already selected for b, so the answer is neither
and the equation is no equation (since there's no other remaining option for the equation.)