Question
Using slope concept, check whether the following points are collinear.
(i) $(-2,-1)(4,0)(3,3)$
(ii) $(-2,-3),\left(\frac{ 3 3 }{ 8 }, 4\right)(5,5)$
(iii) $(4,4)(3,5)(-1,-1)$
(iv) $(2,10),(0,4)(3,13)$
(v) $(5,0)(10,-3)(-5,6)$
(vi) $(2,5),(5,7)(8,9)$

Answer

(ii), (iv), (v), (vi) are collinear.

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