在平面直角坐標(biāo)系中,先將拋物線y=x²+x-2關(guān)于x軸作軸對(duì)稱變換,再將所得的拋物線關(guān)于y軸作軸對(duì)稱變換
A.y=-x²-2x+2B.y=-x²+x-2C.y=-x²+x+2D.y=x²+x+2解題思路中先將拋物線y=x2+x-2關(guān)于x軸作軸對(duì)稱變換,可得新拋物線為y=-x2-x+2；再將所得的拋物線y=-x2-x+2關(guān)于y軸作軸對(duì)稱變換,可得新拋物線為y=-x2+x+2,故選C．還是不太明白,