Question 611656
<pre>
Here's one, and its vertices are (-3,-2), (4,4) and (2,-4)

{{{drawing(400,400,-5,5,-5,5, grid(1),

green(triangle(-3,-2,4,4,2,-4)),
locate(-4,-2,"(-3,-2)"), locate(4,4,"(4,4)"),locate(2,-4,"(2,-4)") 


 )}}}

Edwin</pre>