IB skill practice

Apply two-dimensional matrix transformations

Map a point using a 2 by 2 transformation matrix.

Paper 1, Paper 2 5 marks Difficulty 3

Apply two-dimensional matrix transformations - depth scenario

The matrix \(\begin{pmatrix}1&0\\0&3\end{pmatrix}\) maps point \((6,1)\). Find the new x-coordinate. Enter the requested value and choose the interpretation that matches the result.

Worked practice: result and interpretation

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