Which pair of slopes could represent perpendicular lines?
1/7 , 7
1/2 , 2/4
-3/4...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 11.01.2020 15:31, sparky1234
Which pair of slopes could represent perpendicular lines?
1/7 , 7
1/2 , 2/4
-3/4 , 4/3
1/3 , 1/3
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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