Given the intersection point (- 2,1) of the image of positive and negative scale functions, the analytic expression of these two functions and the coordinate of their other intersection point are obtained Help to analyze, no!

Given the intersection point (- 2,1) of the image of positive and negative scale functions, the analytic expression of these two functions and the coordinate of their other intersection point are obtained Help to analyze, no!

Let the positive and negative scale functions be y = k1xy = K2 / X respectively, because the point (- 2,1) on the image has 1 = - 2K1, so K1 = - 1 / 2, then the analytic expression of the function is y = (- 1 / 2) x, similarly 1 = K2 / - 2, so K2 = - 2, then the analytic expression of the function is y = - 2 / X. the simultaneous two equations are y = (- 1 / 2) xy = - 2 / x, and the solution is X1 = - 2y1 = 1x2 = 2Y2 = - 1