Decide wether the lines are parallel, perpendicular, or neither - -3x+7y=5 7x+3y=15

1 answer:

3 0

Two lines are parallel if they have the same slope. Two likes are perpendicular if they have opposite reciprocal slopes.

-3x + 7y = 5
7y = 3x +5
slope = 3/7

3y = -7x +15
Slope = -7/3

So, these lines are perpendicular.

Hope this helps!

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