Question

Without graphing the lines to the equations, given any two linear equations explain how you can tell if the lines of the two equations are parallel.

Answer 1

To check whether the two lines are parallel or not, without using graphing, first we write them in slope intercept form , which is

$y=mx+b$

Now we compare the slopes of both lines and if the slopes are equal, then the lines are parallel .

So without graphing, we can also check whether the given lines are parallel or not .