Having some problems with this question.

It doesn't say in what plane the rotation is in.. 90 degrees in which direction?The transformationin the plane consists of an anticlockwise rotation through $\displaystyle 90^{\circ}$ about the origin by a translation in which the point (x,y) is transformed to the point (x+1,y+2).T

(a) Show that the matrix representing T is

\begin{bmatrix} 0 & -1 & 1 \\ 1 & 0 &2 \\ 0 & 0 & 1 \end{bmatrix}[/tex]

I assume its the yx plane but I tried that and my matrix was nothing like T.

Thanks