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我们知道,抛物线y=ax2+bx+c(a≠0)是轴对称图形,对称轴是平行于y轴的直线x=-b/2a.那么在抛物线上关于对称轴对称的两个对称点坐标有什么特点呢?能否用抛物线上两个对称点的坐标表示抛物线的对称轴?
We know that the parabola y = ax2 + bx + c (a ≠ 0) is an axisymmetric graph and the axis of symmetry is a straight line parallel to the y axis x = -b / 2a. Then two symmetric points on the parabola that are symmetrical about the axis of symmetry What are the characteristics of coordinates? Can use the coordinates of the two symmetrical points on the parabola to represent the symmetry axis of the parabola?