SOLUTION: determine whether the lines are perpendicular
y=x+4, y=x-4
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Question 476432: determine whether the lines are perpendicular
y=x+4, y=x-4
Answer by Tatiana_Stebko(1539) (Show Source): You can put this solution on YOUR website!
Perpendicular lines are lines whose slopes are negative reciprocals of one another,
The slope of the line is
The slope of the line is
Then not
The lines are not perpendicular
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