Question 760470
Change x + 2y = 6 into y = mx + c form
= 2y = -x + 6
Lines that are parallel have the same 
gradient/ slope/m value
m1 = m2
So m = - 1
using equation: y -b = m(x - a)
                y - (-6) = -1(x - 1)
                y + 6 = -x + 1
                    y = -x + 1 - 6
                    y = -x - 5.
Hope this helps.
:-)