SOLUTION: Determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither.
3x-8y= -18
32x+12y= -18
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Question 157483: Determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither.
3x-8y= -18
32x+12y= -18
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Transform each equation to slope-intercept form, .
Then compare the slopes.
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1.
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2.
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2.
2.
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The slopes are negative reciprocals of each other.
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This is a property of perpendicular lines.
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Graphical proof of perpendicularity.
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