Which equation represents a line which is parallel to the y-axis? a) x= 1/4y
b) x= -7
c) y= 2
d) y= x

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.