SOLUTION: I need to determine whether 3x-8y=-14 and 32x+12y=-2 are perpendicular, parallell or neither. Can you also show mw how to figure both of them out. I attempted the first one and cam
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Question 201652: I need to determine whether 3x-8y=-14 and 32x+12y=-2 are perpendicular, parallell or neither. Can you also show mw how to figure both of them out. I attempted the first one and came up with perpendicular but im not sure. Thanks
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Rearrange both of your equations until they are in slope-intercept form, namely:
Then compare the coefficients on 
(the 
in 
).
If they are equal, the two lines are parallel.
If they are negative reciprocals, that is if 
, then the two lines are perpendicular.
Otherwise, they are neither.
These are the rules:
John
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