同学们都知道,二次函数y=ax2+bx+c(a≠0)的图像与二次函数y=ax2(a≠0)的图像形状是相同的,只是位置不同而已,故此其图像可以通过平移y=ax2的图像而得到.事实上,有相当一部分同学在理解图像平移问题时,经常会在平移方向上混淆不清,因此而造成误解.其实对于此类问题,如 The students all know that the image shape of the quadratic function y = ax2 + bx + c (a ≠ 0) is the same as the image shape of the quadratic function y = ax2 (a ≠ 0), only the position is different, Obtained by translating the image of y = ax2. In fact, a considerable number of students in the understanding of image translation problems, often in the translation direction of the confusion, thus causing misunderstanding.In fact, for such issues, such as