Use Newton's Method to Approximate All the Intersection Points of the Pair

Multiple Choice

Use Newton's method to approximate all the intersection points of the pair of curves. Some preliminary graphing or analysis may help in choosing good initial approximations. Round to six decimal places.
-y = cos x and y = 3x

A) x $\approx$ 0.205651
B) x $\approx$ 0.316751
C) x $\approx$ 0.317851
D) x $\approx$ 0.816751