Question 1084329
Need a slope of 3 in the y=mx+b form
-6x+2y=4
2y=6x+4
y=3x+2.  That has a slope of 3 and is parallel to y=3x.  All the others have a slope of something else.
If the slope is -3x, then 6x+2y=4 and 2y=-6x+4 and y=-3x+2 
C is the answer for the question y=- 3x