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} (15)/(3)=5 \\ (40)/(8)=5 \\ (50)/(10)=5 \end{gathered}`

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

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