题目已知点A(−2A(-2A(−2,y1)y_{1})y1),B(2B(2B(2,y2)y_{2})y2),C(3C(3C(3,y3)y_{3})y3)在二次函数y=ax2−2ax+3ay=ax^{2}-2ax+3ay=ax2−2ax+3a的图象上,二次函数图象与yyy轴的交点在负半轴,则y1y_{1}y1,y2y_{2}y2,y3y_{3}y3的大小关系为（ ）A.y1<y2<y3y_{1} \lt y_{2} \lt y_{3}y1<y2<y3B.y1<y3<y2y_{1} \lt y_{3} \lt y_{2}y1<y3<y2C.y2<y1<y3y_{2} \lt y_{1} \lt y_{3}y2<y1<y3D.y2<y3<y1y_{2} \lt y_{3} \lt y_{1}y2<y3<y1知识点：二次函数的性质I章节：函数 / 二次函数
