Question

A triangle with vertices (1, 1), (4, 6), and (4, 1) is what type of triangle?

Answer 1

Why don't you plot it?
It may help you if you see the actual triangle.

Answer 2

here

Answer 3

Then try using the distance formula on each side to see if they are the same :)

Answer 4

Now that you have a graph set up, can you plot the three points?