they are in the same quadrant but both of these points intersect at -3 giving this answer to be -3,-1 can't be zero only because your point in no smack donw on the x-axis.
im sorry if it's wrong just trying to be helpful but i doubt it is.
When leg one of the triangle is 15ft and leg two is 17 ft you would take 17^2 + 15^2 and then you find the square root of that (514) to get the hypotenuse of the triangle. After that you multiply by two to account for the 2/2 sqaure foot per each unit
