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Are the below pairs of lines parallel, perpendicular, or neither? 9x+12y = 8 and 6x+8y = −1 Parallel Perpendicular Neither
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Feb 9, 2018
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Are the below pairs of lines parallel, perpendicular, or neither?
9x+12y = 8 and 6x+8y = −1
Parallel
Perpendicular
Neither
Mathematics
high-school
Isaacs
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They are parallel to eachother
Thomas Joos
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Feb 11, 2018
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Thomas Joos
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9x + 12y = 8
12y = -9x + 8
y = - 3/4x + 2/3....slope here is -3/4, y int is 2/3
6x + 8y = -1
8y = -6x - 1
y = - 3/4x - 1/8...slope here is -3/4, y int is -1/8
same slope, different y intercepts means parallel lines
Kchan
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Feb 13, 2018
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Kchan
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