SOLUTION: Tell whether the graphs of the following pair of equations are parallel, perpendicular, or neither.
y=9-13, y=1/9x+28
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Question 1107278: Tell whether the graphs of the following pair of equations are parallel, perpendicular, or neither.
y=9-13, y=1/9x+28
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
Something missing...
What do you know about parallel and perpendicular lines and their equations?
Look at product of their slopes:
Does that tell you something?
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