论文部分内容阅读
当二次函数的图象与x轴有两个不同交点M(Z_1,0)、N(x_2,0)时,其解析式便可写成f(x)=a(x-x_1)(x-x_2),有些教辅资料称这一形式为零点式,本文仅就其在解题中的主要应用举几例,以期能对大家的学习有所帮助.
When the quadratic function image and the x-axis have two different intersection points M(Z_1, 0) and N(x_2, 0), the analytical expression can be written as f(x)=a(x-x_1)(x- X_2), some teaching and auxiliary materials called this form of zero point, this article only gives a few examples of its main applications in solving problems, in order to be able to help everyone’s learning.