Ononot — A point P(x, y) is transformed by the matrix T = \begin{pmat

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A point $P(x, y)$ is transformed by the matrix $T = \begin{pmatrix} 0.5 & 0 \\ 0 & 0.5 \end{pmatrix}$ followed by a translation of $\langle -2, 4 \rangle$ . If the final image is $P'(1, 2)$ , what are the coordinates of the original point $P$ ?