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19.05.2021 •
Mathematics
Determine if lines AB and CD are parallel, perpendicular, or neither. A(-3,8), B(3,2), C(7,1), D(5,-1)
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Ответ:
Step-by-step explanation:
The slope of line AB is
The slope of line CD is
Since the slopes multiply to
, these lines are perpendicular to one another.
Ответ: