设P坐标为(y1^2/2p,y1)
则:y1=6
y1^2/2p+p/2=10
18/p+p/2=10
p^2-20p+36=0
(p-18)(p-2)=0
p=2,或,p=18
P的横坐标=y1^2/2p=18/p=9,或,1
抛物线方程:y^2=4x,或,y^2=36x
设P坐标为(y1^2/2p,y1)
则:y1=6
y1^2/2p+p/2=10
18/p+p/2=10
p^2-20p+36=0
(p-18)(p-2)=0
p=2,或,p=18
P的横坐标=y1^2/2p=18/p=9,或,1
抛物线方程:y^2=4x,或,y^2=36x