4. 3 , maps the point (r, y) onto the point The transformation with matrix T,...

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4. 3 , maps the point (r, y) onto the point The transformation with matrix T, whereT= 4 3 (x', y'), where (a) Find the equation of the line onto which the line y+x = 0 is mapped by the transformation. (b) Find the values of m for which the line y=mx is mapped onto itself. 4. 3 , maps the point (r, y) onto the point The transformation with matrix T, whereT= 4 3 (x', y'), where (a) Find the equation of the line onto which the line y+x = 0 is mapped by the transformation. (b) Find the values of m for which the line y=mx is mapped onto itself.