<prompt> Mstari ufuatao umewekewa vigezo, ili vekta ya mwelekeo wake iwe ya fomu beginpmatrix 2 b endpmatrix. Find b.asyukubwa wa kitengo sentimita 0.4;jozi A, B, L, R;int, n;kwa i -8; i 8; i chorai,-8--i,8,kijivu0.7; chora-8,i--8,i,kijivu0.7;chora-8,0--8,0,Mishale6;chora0,-8--0,8,Mishale6;A -2,2;B A 3,2;L uganiA, B, -8,0, -8,1;R uganiA, B, 0,8, 1,8;kuchora L--R, nyekundu;lebox, 8,0, E;leboy, 0,8, N;asy  <response>: Laini hupitia beginpmatrix -5 0 endpmatrix na beginpmatrix -2 2 endpmatrix, hivyo mwelekeo wake wa vekta ni sawia naanzapmatrix -2 2 mwishopmatrix - anzapmatrix -5 0 mwishopmatrix anzapmatrix 3 2 mwishopmatrix. Ili kupata x-coordinate ya 2, tunaweza kuzidisha vekta hii kwa scalar frac23. Hii inatupafrac23 anzapmatrix 3 2 endpmatrix anzapmatrix 2 43 endpmatrix.Kwa hiyo, b frac43. 