The slope of (-5,-4) (5,3)

The hypotenuse of an isosceles right triangle is $14\sqrt 2$. what is the area of the triangle?

15 point ! ~ see if you know the answer to both you!

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)