SOLUTION: what two lines are parallel 1.)5y=-4x-5 2.)5y=2+2x 3.)5y+4x=-1

Question 784792: what two lines are parallel
1.)5y=-4x-5
2.)5y=2+2x
3.)5y+4x=-1
Answer by ChrisDS(7) (Show Source): You can put this solution on YOUR website!
y=mx+b
5y=-4x-5 Divide both sides by 5
y=(-4/5)x-1
5y=2x+2 Divide both sides by 5
y=(2/5)x+(2/5)
5y+4x=-1 Subtract 4x from both sides
5y=-4x-1 Divides both sides by 5
y=(-4/5)x-1
Parallel lines have the same slope. (m) equals slope so y=mx+b. So 1 and 2 are parallel because both of their slopes are (-4/5)
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