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Two lines $l_{1}$ and $l_{2}$ with… | ClassNotes
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Sep 18, 2022
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Two lines $l_{1}$ and $l_{2}$ with respective slopes $m_{1}$ and $m_{2}$ are parallel if:
Difficulty: Easy
A:
$m_{1}=m_{2}$
B:
$m_{1}=\frac{1}{m_{2}}$
C:
$m_{1}=-\frac{1}{m_{2}}$
D:
$m_{1}m_{2}+1=0$
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ID: 63273db9ca83163ac3a1117b
