Find the value of x for which the points A(x,2) B(-3,-4) and c(7-5) are collinear
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Step-by-step explanation:
For collinear all three point must lie on same line and the slope will be equal for each and every point.
(y2-y1)/(x2-x1) = (y3-y2)/(x3-x1)
(-4-2)/(-3-x) = (-5-(-4)/(7-x)
-6/-3-x = -1/7-x. [Crossmultiply]
3+x = -42+ 6x.
3+42=6x-x
45= 5x
Therefore,. X = 45/5
X= 9. Ans
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