若三点A(2,3)B(m,4)C(8,m)共线,则m等于多少若三点A(2,3)B(m,4)C(8,m)共线,则m等于多少

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若三点A(2,3)B(m,4)C(8,m)共线,则m等于多少若三点A(2,3)B(m,4)C(8,m)共线,则m等于多少

若三点A(2,3)B(m,4)C(8,m)共线,则m等于多少若三点A(2,3)B(m,4)C(8,m)共线,则m等于多少
若三点A(2,3)B(m,4)C(8,m)共线,则m等于多少若三点A(2,3)B(m,4)C(8,m)共线,则m等于多少

若三点A(2,3)B(m,4)C(8,m)共线,则m等于多少若三点A(2,3)B(m,4)C(8,m)共线,则m等于多少
(m-3)/6=1/(m-2)
解得:m=0或5