determine which points are the vertices of a triangle.
a. A(-3, -1), B(0,0), C(3, 1)
b. H(-4, 2), J(4, -2), K(-12, 6)
c. P(2, 4), Q(1, 1), R(0, -6)
d. W(0, 5), X(0, -1), Y(0, -5)

Question

determine which points are the vertices of a triangle.
a. A(-3, -1), B(0,0), C(3, 1)
b. H(-4, 2), J(4, -2), K(-12, 6) 
c. P(2, 4), Q(1, 1), R(0, -6)
d. W(0, 5), X(0, -1), Y(0, -5)

anonymous · Answer

Why not just draw them?

anonymous · Answer

One can be ruled out easily.

anonymous · Answer

Basically the only requirement is that they can't be on the same line.

anonymous · Answer

okay. thanks

anonymous · Answer

You're welcome. Have a good day now.

anonymous · Answer

if you really wanted to go into detail you could use the triangle inequality

anonymous · Answer

how do yo know tho? because they will all end up being triangles

anonymous · Answer

Have you plotted them and connected them?

anonymous · Answer

almost done with that

anonymous · Answer

oh  got it. thanks

anonymous · Answer

Which ones did you say weren't triangles?