Question 759810
Put in y = mx + c form
 x - 8y = 5
   -8y = - x + 5
Multiply through by -1
    8y = x - 5
Divide through by 8
     y = 1/8x - 5/8
As lines that are parallel have
the same gradient.
m1 = m2
So, slope of line that is 
parallel to x - 8y = 5
= 1/8
Hope this helps.
:-)