Answer
The graphs of the two equations are not parallel lines.
Work Step by Step
RECALL:
(1) In the slope-intercept form of a line's equation, $y=mx+b$, $m$=slope and $b$ is the y-coordinate of the y-intercept.
(2) Parallel lines have equal or the same slope.
Write both equations in slope-intercept form to obtain:
First Equation:
$y+8=-6x
\\y+8-8=-6x-8
\\y=-6x-8$
Second Equation:
$-2x+y=5
\\-2x+y+2x=5+2x
\\y=5+2x
\\y=2x+5$
Note that the two equations have different slopes.
Thus, their graphs are not parallel lines.