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3 years ago

BRAINLIEST ASAP! PLEASE HELP ME. :)

Mathematics

1 answer:

yuradex [85]3 years ago

6 0

<h3>Answer: Perpendicular</h3>

=========================================================

Work Shown:

Solve the first equation for y

3x+7y = 15

7y = -3x+15

y = (-3x+15)/7

y = (-3/7)x + 15/7

The slope here is -3/7

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Solve the second equation for y

7x-3y = 6

-3y = -7x+6

y = (-7x+6)/(-3)

y = (7/3)x - 2

The slope here is 7/3

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The slopes -3/7 and 7/3 are not equal, so we don't have parallel lines.

The lines however are perpendicular because the slopes multiply to -1

(-3/7)(7/3) = (-3*7)/(7*3) = -21/21 = -1

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