If you can't draw well, you won't draw. It is obviously a hyperbola with one or three quadrants.

(1) when x=-2, the function value y=-3/4, which is known from the image.

When -2 < x < 0, y

When x > 0, y>0

(2) The absence of x makes y=0.

X> in 0, y>0

x & lty < 0； 0

(3) the function value y > 3, that is, 3/2x >; 3 gets 0.

(4) When y=3, x= 1/2, which is known from the image, 0.