Three points P(h,k),Q(x1,y1) and R(x2,y2) lie on a line. Show that (h−x1)(y2−y1)=(k−y1)(x2−x1)

Three points P(h,k),Q(x1,y1) and R(x2,y2) lie on a line. Show that (

1.	Three points P(h,k),Q(x1,y1) and R(x2,y2) lie on a line. Show that (h−x1)(y2−y1)=(k−y1)(x2−x1)
Answer» Three points $P (h, k), Q (x_{1}, y_{1}) and R (x_{2}, y_{2})$ lie on a line. Show that $(h - x_{1}) (y_{2} - y_{1}) = (k - y_{1}) (x_{2} - x_{1})$

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Three points P(h,k),Q(x1,y1) and R(x2,y2) lie on a line. Show that (h−x1)(y2−y1)=(k−y1)(x2−x1)

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