—Will you be back ____ five in the afternoon?
—I’m not sure, maybe later than that.
如图,O为坐标原点,直线l⊥y轴,垂足为M,反比例函数y=k/x(k≠0)的图象与l交于点A(m,3),△AOM的面积为6
(1)求m、k的值;
(2)在x轴正半轴上取一点B,使OB=OA,求直线AB的函数表达式.