Given that the image of positive scale function passes through M (3,2) and n (m, - 6), the analytic expression of the function and the value of M are obtained emergency

Given that the image of positive scale function passes through M (3,2) and n (m, - 6), the analytic expression of the function and the value of M are obtained emergency

Let y = KX be a positive proportional function
Because (3,2)
So k = 2 / 3
-6=2/3 *m
m=-9