Find the discriminant and the number of real roots for this equation. 4x + 12x + 9 = 0
A. O; two real roots
B. 0; one real root
C. -144; one real root
D. -144; no real roots
SUBMIT

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.