2. The function y=( 1,-root number 3)x has a point p. If the abscissa of the point p is 1, the distance from p to the x axis is (root number 3).

3. It is known that the proportional function passes through point A(2, -4), point P is on the image of the proportional function, B(0, 4) and S△ABP=8, and the coordinate of point P is (-2 4).

4. The abscissa of a point on the proportional function y=-2x is 4, so the distance from this point to the X axis is (8).

5. If the image of the proportional function y=kx(k≠0) passes through the second and fourth quadrants and P (k+2, 2k+ 1), then k(-1).

6. If the point (-1, 2) is on the image of the function y=mx+n and y = x-m, then the analytic expression of the proportional function of (m, n) is (y=(- 1/5)x).

7. Given that the abscissa of a point P on the image of the proportional function is 2, and the area of PD⊥x axis (O is the coordinate origin, D is the vertical foot) and △OPD is 6, find the analytic expression of this proportional function. (y=3x or y=-3x)

8. It is known that Y is directly proportional to X. If Y decreases with the increase of X, the resolution function between Y and X can be obtained from its image by A(3, -a) and B(a,-1). (y= minus three x)

9. Given a (-3,0) b (0,6), the area of △AOB is divided into 1: 2 by a straight line passing through the origin, and the analytical expression of this straight line is obtained.

(y=-x or y=-4x)