在平面直角坐标系中,点o为坐标原点,抛物线y=ax2﹣2ax 32 与x轴交于点a、b(点a在点b的左侧),抛物线的顶点为c,直线ac交y轴于 Template




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tomski在平面直角坐标系中,点o为坐标原点,抛物线y=ax2﹣2ax 32 与x轴交于点a、b(点a在点b的左侧),抛物线的顶点为c,直线ac交y轴于 coloring