Mr and Mrs Brown are from America. They are now teaching English in Beijing .Their son Jack is with them. Jack speaks English. They want him to learn some Chinese. Jack is in Grade Three in a Chinese school .He likes to play with(玩耍) Chinese children every day. He listens to Chinese, speaks Chinese, reads books in Chinese and writes in Chinese. He is good at his Chinese.

2017年3月15日市二届全国人大五次会议表决通过，自2017年10月1日起施行的_______，被人们称为民事法律体系中的“小宪法”，是各分则编纂的依据，必将助推法治中国建设迈向新阶段。据此回答下题

求两条垂直的直线2x+y+2=0与ax﹣y﹣2=0的交点坐标．