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 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