[问答题]
A linear transformat o (+7 nqiw)wfoyy,(4y3jxnytf ak6:b ion vq x,j-xg1) mt.d3tpn maps the point A(2,3) to A ′(2,−5) and the point B(−2,1) to B ′(6,9). Determine the tm,vtx. dj gp1)q-xn3linear transformation, giving your answer in the form x′=Ax where A is a 2×2 matrix.