SOLUTION: determine weather the two lines are parallel perpendicular or neither 2x+2y=7 2x-2y+5

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Question 613791: determine weather the two lines are parallel perpendicular or neither
2x+2y=7
2x-2y+5
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
the ratios of the coefficients are negative-reciprocals, so the lines are perpendicular