Current location - Training Enrollment Network - Mathematics courses - Detailed solution process: 20 10 The last 26 mathematical simulation test questions of the senior high school entrance examination in Heze City and Shandong Province (the finale).
Detailed solution process: 20 10 The last 26 mathematical simulation test questions of the senior high school entrance examination in Heze City and Shandong Province (the finale).
Solution: Let B(X, 0), C(0, y) Because the parabola intersects with the Y axis, when X=0, substitute it into the equation to get Y=-4.
So the coordinate of c is (0, -4), because OB=OC and point B is on the right of point A, so the coordinate of point B is (4, 0). The analytical formula of parabola can be obtained from the coordinates of point A and point B: y=x2+3x-4.