Question: The points A (1,-1), B(-1,K) and C (S, 7) are collinear. Find the value of K. ) Triangle MND has vermues M(-3,9), N(0,0), P(12,

The points A (1,-1), B(-1,K) and C (S, 7) are collinear. Find

The points A (1,-1), B(-1,K) and C (S, 7) are collinear. Find the value of K. ) Triangle MND has vermues M(-3,9), N(0,0), P(12, 4) Show that the triangle is a right angle

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