SOLUTION: In each case determine whether the lines are parallel, perpendicular, or neither. y=x+7 y=-x+2

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Question 282958: In each case determine whether the lines are parallel, perpendicular, or neither.
y=x+7
y=-x+2
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
slope of the first line is 1
slope of the second line is -1
their product 1*-1 =-1 so they are perpendicular.