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It is known that the inverse proportional function y = m + 3 of X passes through points a (2, - M) and B (n, 2n) Finding the values of (1) m and n (2) If there are two points P1 (x1, Y1) and P2 (X2, Y2) on the image, and X1 < 0 < X2, try to compare the size of Y1 and Y2
y=（m+3）/x
Substituting
（m+3）/（-m）=2
m+3=-2m
3m=-3
m=-1
y=2/x
Substituting (n, 2n) into
2n=2/n
N = 1 or - 1
Y = 2 / X is an inverse proportional function
The image is in one or three quadrants
Because x1
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