The image of 1. inverse proportional function belongs to a hyperbola with the origin as the symmetry center. Each curve of each quadrant in the inverse proportional function image will be infinitely close to the X axis and the Y axis, but will not intersect with the coordinate axis (y≠0).

2. Generally speaking, if the relationship between two variables X and Y can be expressed by Y = K/X (where K is a constant and k≠0), then Y is an inverse proportional function of X ... Because y=k/x is a fraction, the value range of independent variable X is X≠0. And y=k/x is sometimes written as xy=k or y = k x (- 1). The expression is: x is the independent variable, y is the dependent variable, and y is the function of X.