SOLUTION: 6x+2y=8 15x+5y=21 is the lines parallel, perpendicular, or neither

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Question 435123: 6x+2y=8
15x+5y=21
is the lines parallel, perpendicular, or neither

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
6x+2y=8
2y=-6x+8
y=-3x+8/2...............1
15x+5y=21
5y=-15x+21
y=-3x+21/5.............2
Both lines have slope -3 so they are parallel