Question 272443
You have two equations that need to put into y=mx+b format.
.
y = x + 13
y = x - 9
.
The slope of both lines is 1, so they may be parallel or the same line.
They have different y-intercepts, so they are not the same line.
So they are parallel.
.
{{{graph(500,500,-20,20,-20,20,x+13, x-9)}}}