If three points a (3,1), B (- 2, K) and C (8,1) can form a triangle, then the value range of the real number k is the same
Three points are not collinear
The ordinate of AC is the same, both are 1, so the line where a and C are located is y = 1,
As long as B is not on this line, it can form a triangle;
So K ≠ 1
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