Question

Show that the points A (1,-1), B (6, 4) and C (4,2) are collinear.​

Answer 1

Answer:

Yes, the points are colinear

Step-by-step explanation:

A(1,-1), B(6,4) and C(4,2)

ar (triangle ABC) will be 0 if the points are colinear

ar ( triangle ABC) = 1/2[1(4+2)+6(2-1)+4(-1+4)]

0 = 6 + 6 + 12

0 = 0

hence these points A B and C are colinear