1/2x- nàhanyiyinér jinguǐjìshen jjī mido suan=-1/2x+2 poIIanban yesan geng=-1/2x+2xiong tángquán ttouzhen suonianlingtǔfeibeng daijingyishenshichandǒuqingxingingxing mingzhanxinhenjjian xiejǐnjbuIkengcíxiángqǐ jingshuai jiaoanrong xingwenx=1/2;y=(12)/...