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{{ printedBook.courseTrack.name }} {{ printedBook.name }} If two lines are parallel they must have the same slope. We can read the $m$-value if we rewrite the equations in slope-intercept form.

$4x+y+2=0$

$y=-4x−2$

$8x=6−2y$

$y=-4x+3$

Comparing the slope of the lines, we see that line $1$ and line $3$ have the **same** slope. Because these lines also have different $b$-values ($b=-2$ and $b=3$) they do not coincide. Line $1$ and line $3$, are then, parallel.