For 1. If two lines are parallel, the slopes are the same. If two lines are perpendicular, the slopes are the opposite reciprocal, or is -1. 2. The answer is 3/2. Because in a perpendicular slope of a line, it has to be opposite sign and the reciprocal. 3.It is parallel. because first we solve 6x-3y=8 We move the 6x to the other side, making it -6x Now we have -3y=-6x+8 We use the y=Mx+b -3y=-6x+8 Then we divide by -3 answer: y= 2x-8/3 now compare y=2x+3 and y=2x-8/3 With this we know it’s parallel because it’s the same slope but different y-intercept .
