IB skill practice

Use vector equations for reflections

Represent reflections in lines and planes using vector equations.

Paper 1, Paper 2 5 marks Difficulty 5

Use vector equations for reflections - visual complex argument

A point (2,0) is reflected in the line \(y=x\). Enter the first coordinate of the image point.

Worked practice: result and interpretation

Calculate the requested result first, then choose the interpretation that follows from it.