find the value of p,if the point A(1,2)B(3,p)and C(5,-4) are collinear
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If the three points are collinear then
slope of line AB = slope of line AC
slope of line AB = (P - 2) / 3 - 1 = P - 2 / 2
slope of line AC = -4 - 2 / 5 - 1 = -6 / 4
then,
(P - 2) / 2 = -3/2
P = -1
Hope this helps!
slope of line AB = slope of line AC
slope of line AB = (P - 2) / 3 - 1 = P - 2 / 2
slope of line AC = -4 - 2 / 5 - 1 = -6 / 4
then,
(P - 2) / 2 = -3/2
P = -1
Hope this helps!
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