已知抛物线L:y=ax2+bx+c(其中a,b,c都不等于0),它的顶点P的坐标是(−b/2a,4ac−b²/4a),与y轴的交点是M(0,c).我们称以M为顶点,对称轴是y轴且过点P的抛物线为抛物线L的伴随抛物线,
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/01 00:55:14
![已知抛物线L:y=ax2+bx+c(其中a,b,c都不等于0),它的顶点P的坐标是(−b/2a,4ac−b²/4a),与y轴的交点是M(0,c).我们称以M为顶点,对称轴是y轴且过点P的抛物线为抛物线L的伴随抛物线,](/uploads/image/z/1057544-8-4.jpg?t=%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFL%EF%BC%9Ay%3Dax2%2Bbx%2Bc%EF%BC%88%E5%85%B6%E4%B8%ADa%2Cb%2Cc%E9%83%BD%E4%B8%8D%E7%AD%89%E4%BA%8E0%EF%BC%89%2C%E5%AE%83%E7%9A%84%E9%A1%B6%E7%82%B9P%E7%9A%84%E5%9D%90%E6%A0%87%E6%98%AF%EF%BC%88%26%238722%3Bb%2F2a%2C4ac%26%238722%3Bb%26%23178%3B%2F4a%EF%BC%89%2C%E4%B8%8Ey%E8%BD%B4%E7%9A%84%E4%BA%A4%E7%82%B9%E6%98%AFM%EF%BC%880%2Cc%EF%BC%89%EF%BC%8E%E6%88%91%E4%BB%AC%E7%A7%B0%E4%BB%A5M%E4%B8%BA%E9%A1%B6%E7%82%B9%2C%E5%AF%B9%E7%A7%B0%E8%BD%B4%E6%98%AFy%E8%BD%B4%E4%B8%94%E8%BF%87%E7%82%B9P%E7%9A%84%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%B8%BA%E6%8A%9B%E7%89%A9%E7%BA%BFL%E7%9A%84%E4%BC%B4%E9%9A%8F%E6%8A%9B%E7%89%A9%E7%BA%BF%2C)
xUNA~t&Щ/ Il/
ћ"[ł)A$ڀQ@L)KY컘U_3ӟuB^mw|ws4[ʱ˯AyV?U/㔦=`-<&|TvmgU%vZqO-w*Oly9Kh97,,.Y+{7M`eKڳjҾ}˶2I
b@<=+*jv[ɓ[ׄ<lAH(9_a=(ecW<