Question

show that the point are collinear (-3,-7),(4,7) and (5,9),

Answer 1

They are not linnear

Answer 2

solution.

if points are collinear then area must be 0.

so, 1/2 {-3(7-9)+4(9-(-7)]+ 5 (-7 -7)]}

= 1/2 { 6+ 64+ (-70)]

= 1/2* (70-70)

=1/2*0

= 0

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