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Dominik [7]
2 years ago
13

BRAINLIEST

Mathematics
1 answer:
Sati [7]2 years ago
8 0

Answer:

slope of AB = Y2 -Y1/X2 -X1

=7 - 3/-5-(-5)

=4/-5 +5 = 4/0

= undefined ( a number divided by 0 is undefined)

slope of CD =9 -9/-10-1

= 0/-11

= 0

since AB is not equal to CD

THE LINES ARE PERPENDICULAR

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Step-by-step explanation:

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