if A(k,k) B(2,3) C(4,-1) are collinear points then find value of k
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if points are colliner line joing themvslopeviscequal
slope=difference y coordinates/difference of x coordinates
do
3-k/2-k=-1-3/4-2
3-k/2-k=-4/2
3-k= -2(2-k)
3-k=-4+2k
=3k=7
k=7/3
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