Identify the specific figure which will be formed by each of the following set of points. Prove your answer by writing your solution and explanation for each item. (Note: For quadrilaterals, classify them as either parallelogram, trapezoid, rectangle, square, rhombus or kite. For triangles, classify them as either scalene, isosceles or equilateral.)
1. M(2, 5), A(6,8), R(2, -7), K(6, -4)
2. P(-1, 2), A(3, 2), U(5, -2), L(-3, -2)
3. O(-2, 7), A(2, 4), H(-1, 0)
4. L(-3, -5), I(-1, 6), A(4, 2)
5.J(7, 1), O(5, 1), H(5, 6), N(7, 6)​