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nikklg [1K]
2 years ago
13

I need help for all of these please

Mathematics
1 answer:
Oliga [24]2 years ago
4 0

Answer:

(What is the full question?)

Step-by-step explanation:

Note:

1. If line a is parallel to b, slope a = slope b;

2. If line a is perpendicular to b, slope a * slope b = -1

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