Which set of ordered pairs does not represent a function? {(-5, -2), (3,-2), (5, -9), (6, -7)}
{(-1, -3), (-4,9), (-7,2), (3,9)}
{(4,5), (-8,-6), (-7, -1), (6,-1)}
{(-4,-9), (-4,4), (-2,2), (9,5)}

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.