函数图象与其系数有如下关系：正比例函数y＝kx（k≠0）1．k＞0图象在一、三象限内，y值随x值的增大而增大．2.k＜0图象在二、四象限内，y值随x值的增大而减少．反比例函我1．k＞0图象的两个分支分别在第一、三象限内，在每个象限内，y的值随x值的增大而减小；2.k＜0图象的两个 The function image and its coefficients have the following relationship: The proportional function y=kx(k≠0)1. For k>0 images in one or three quadrants, the y value increases with increasing x value. 2.k<0 image in the second and fourth quadrants, y value decreases with increasing x value. The anti-proportional letter I 1. The two branches of the k>0 image are in the first and third quadrants. In each quadrant, the value of y decreases as the value of x increases; 2.k<0 of the two images