1. Choose a location for [i]P[/i], a variable point on the line [i]OA[/i].[br]2. Check the box 'Show Q' to visualise where [i]Q [/i]is according to the given ratio.[br]3. Check the box 'Show R' to visualise where [i]R[/i] is according to the given ratio.[br]4. Drag the variable point [i]P[/i] along the line [i]OA[/i], observe how [i]R[/i] varies and make a conjecture (guess).[br]5. Check the box 'Trace R' then repeat step 4, you will see the locus of [i]R[/i] as [i]P[/i] varies.