Question

Find the value of x for which the points A(x,2) B(-3,-4) and c(7-5) are collinear

Answer 1

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Answer 2

Answer:

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