Question

Guys plz help me out...very urgent


Show that the points A(-3,2),B(1,-2) and C(9,-10) are co-linear.

Answer 1

make eqn of line amd satisy with 3rd point

Answer 2

use this formula and you will get your answer

$\sqrt{x1(y2 - y3) + x2(y3 - y1) + x3(y1 - y2)}$