Answer:
6x
Finding a parallel slope is really easy:
Anything that has the same slope is parallel. That means the slope needed for finding something parallel is whatever the slope of the original line is. You can find this out by putting everything into the y=mx+b formula; mx is the slope.
When you do this, you should get -y=-6x+1. You cannot have a negative y, so decide everything by -1 and you will get y=6x-1. 6x Is the slope.