<prompt> Laini y frac3x - 54 imeainishwa katika fomuanzapmatrix x y mwishopmatrix mathbfv t mathbfd,ili kwa x ge 3, umbali kati ya beginpmatrix x y mwishopmatrix na anzapmatrix 3 1 endpmatrix ni t. Tafuta mathbfd.  <response>: Kuweka t 0, tunapataanzapmatrix x y endpmatrix mathbfv.Lakini umbali kati ya beginpmatrix x y endpmatrix na begin pmatrix 3 1 mwishopmatrix ni t 0, hivyo mathbfv anzapmatrix 3 1 endpmatrix. Hivyo,anzapmatrix x y mwishopmatrix anzapmatrix 3 1 mwishopmatrix t mathbfd.Kisha kwa x ge 3,kushoto anzapmatrix x - 3 y - 1 mwishopmatrix kulia kushoto anzapmatrix x - 3 frac3x - 94 mwishopmatrix kulia kushoto anzapmatrix 1 frac34 mwishopmatrix kulia x - 3 frac54 x - 3.Tunataka hii iwe t, hivyo t frac54 x - 3. Kisha x frac45 t 3, na y frac3x - 54 frac35 t 1, hivyoanzapmatrix x y mwishopmatrix anzapmatrix frac45 t 3 frac35 t 1 mwishopmatrix anzapmatrix 3 1 mwishopmatrix t anzapmatrix 45 35 mwishopmatrix.Hivyo, mathbfd anza pmatrix 45 35 mwishopmatrix. 