25. For what value for x, the points A (1, 2) B(-4, 7) and C (x, -1) a – InterviewSolution

1.	25. For what value for x, the points A (1, 2) B(-4, 7) and C (x, -1) are colline26. Find the value Ofy such thot po Op where P, Q and R are the noints
Answer» For collinear, area of triangle=0(1/2)[1(7+1)+(-4)(-1-2)+x(2-7)]=0(1/2)[8+12-5x]=020=5xx=4

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