1. Quadrilateral EFGH has vertices at E(1,8), F(6,-1), G(-4,-4) and H(-9,5). (a) Prove that EFGH is a parallelogram.
(b) Prove that EFGH is not a rhombus (many methods)

Find solution of the linear equation y = 2/3x + 1/3

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.

Simplify the given expression leaving the answer in improper fraction form. 2/3+5/6