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20 1 1 yiwu senior high school entrance examination math problems 16 detailed answers.
(20 1 1 Yiwu, Zhejiang,16,4 minutes) As shown in the figure, the symmetry axis of the image of the linear function y =-2x and the image of the quadratic function y =-x2+3x intersect at point B. 。

(1) Write the coordinates of point B ▲;

(2) The known point P is one of the images of the quadratic function Y =-x2+3x on the right side of the Y axis.

A moving point, the straight line Y =-2x translates along the Y axis, and the X axis and the Y axis intersect.

C and D. If △PCD at right angles to CD is similar to △OCD, then the point

The coordinate of p is ▲.

Answer (1)(32,-3); (2)(2,2)、( 12,54)、( 1 14, 1 1 16)、( 135,2625)