Algebra HW HELP PLZ

Hello, I would like help on how to solve this.
Determine whether the graphs of the given equations are parallel, perpendicular, or neither.


y = x + 11.
y = - x =2.

asked by ARMY
  1. the slopes are different, so the lines are not parallel.
    Their product is -1, so the lines are perpendicular.

    posted by Steve

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