What is the website that has a equation calculator in it but i can't remember the website.

The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.

If you could answer these your a life saver

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose