The first-order function y = x + 3 and X, Y axis intersect at two points a and B respectively, and there is a point P on the coordinate axis, so that the triangle ABP is a right triangle, and the coordinates of point P are obtained

It is known that the linear function y = - 2x + 4,
(1) Draw its figure in the plane rectangular coordinate system;
Connect a straight line through two points (0,4) (2,0)
(2) Write out the coordinates of the graph with x-axis and y-axis;
（0,4）（2,0）
(3) Find the area of the triangle formed by this line and two coordinate axes;
1 / 2x4x2 = 4 (area unit)
(4) When x is what, Y0?
Solution - 2x + 40
X 2

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