Will pay $20 to whoever solves this pls help

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

In a column proof the right column states your reasons

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.