Two lines $l_{1}$ and $l_{2}$ with respective slopes $m_{1}$ and $m_{2}$ are parallel if:

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Two lines $l_{1}$ and $l_{2}$ with respective slopes $m_{1}$ and $m_{2}$ are parallel if:

E

Editor

Sep 18, 2022

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

ID: 63273db9ca83163ac3a1117b