Odpowiedź :
[tex]A=(6,-3) \ i \ B=(2,4)\\\\\{6a+b=-3 \ \ |\cdot(-1)\\\{2a+b=4\\\\\{-6a-b=3\\+\{2a+b=4\\-------\\\\-4a=7 \ \ |:(-4)\\\\a=-1,75\\\\2\cdot(-1,75)+b=4\\\\-3,5+b=4 \ \ |+3,5\\\\b=7,5\\\\\huge\boxed{y=-1,75x+7,5}[/tex]
[tex]A=(6,-3) \ i \ B=(2,4)\\\\\{6a+b=-3 \ \ |\cdot(-1)\\\{2a+b=4\\\\\{-6a-b=3\\+\{2a+b=4\\-------\\\\-4a=7 \ \ |:(-4)\\\\a=-1,75\\\\2\cdot(-1,75)+b=4\\\\-3,5+b=4 \ \ |+3,5\\\\b=7,5\\\\\huge\boxed{y=-1,75x+7,5}[/tex]