Question

Show that the following points are collinear using determinants: 

L(2, 5), M(5, 7), N(8, 9)

Answer 1

Here, L(x₁ , y₁ ) = L(2, 5) 

M(x₂ , y₂ ) = M(5, 7) 

N(x₃ y₃ ) = N(8, 9) 

If A(ΔLMN) = 0, then the points L, M, N are collinear.