\"\"

\

Observe the table:

\

Find the which type of variation.

\

Case (i): Find direct or not.

\

The tabular form is

\ \
\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\"\"\"\"\"\"
\"\" \"\" \"\"
\"\" \"\" \"\"
\"\" \"\" \"\"
\"\" \"\" \"\"
\

Observe table:

\

The quotients of \"\" are same of the all table values.

\

The quotients are constant.

\

Therefore, the relation shows direct variation.

\

\"\"

\

Relation shows direct variation.