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

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Question 317709: In each case determine whether the lines are parallel, perpendicular, or neither
y = x + 7
y = -x + 2
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
Y=mX+b where m=slope & b=the Y intercept.
y = x + 7 This equation (line) has a slope=1.
y = -x + 2 This equation (line) has a slope=-1.
Therefore these lines are perpendicular.