They are parallel
You have to put the two equations into slope-intercept form to figure out if they are parallel or perpendicular.
Slope-intercept: y=mx+b
The first equation in slope intercept form is: y = -4/3x + 4
Slope of -4/3
The second equation in slope intercept form is: y = -4/3x - 6
Slope of -4/3
Since the slopes are equal and the y-intercepts are different, the two lines are parallel
~~hope this helps~~
