How do you prove algebraically, that the following vertices are a rectangle. I can plot it on a graph, but I can't figure out how to prove using algebra.
Help.
1 way to do it:
Let the given points correspond to respectively.
Then to show that is a rectangle, we must show that each interior angle measures . To do this, we must need to only compare the slopes of line segments with , and with and etc...
Do you get what I'm saying?