Question 101522
First let's find the slope of the line passing through those two points. 
The equation for the slope is {{{m=(y[2]-y[1])/(x[2]-x[1])}}}.
Using your values, then {{{m=(1-6)/(2-(-5))}}}.
{{{m=(-5)/7)}}}.
Second, parallel lines have the same slope. So any line parallel to your line would have a slope of {{{m=(-5)/7)}}}.