Question

2. Choose the type of variation that relates the variables in the table.Xy3158401050joint variationinverse variationcombined variationdirect variation

Answer 1

Checking the ration of y:x,

$\begin{gathered} \frac{15}{3}=5 \\ \frac{40}{8}=5 \\ \frac{50}{10}=5 \end{gathered}$

As the ratio is constant the variation is a direct variation.

Thus, option (D) is the correct solution..