Question

ditermine the points (1,5) , (2,3), (-2,-11) are collinear​

Answer 1

Answer:

if the triangle's area is 0 then the points are collonear.

Step-by-step explanation:

the formula of triangle's area is

1/2 (x1(y2-y3)+x2(y3-y1)+x3(y1-y2))