[问答题]
A linear transformation maps the tnoo+ ne)pj 2jg ,0occ1:ok4np xnw(q zg9mg;vy), d.byz)8ssl2l b3eoint A(2,3) to A ′(2,−5) and the point B(−2,1) to B ′(6,9). Determine the linear transformation, y dwng mz sl(2)s;xzby.l,eg398)vbq giving your answer in the form x′=Ax where A is a 2×2 matrix.