Answer:
9) 
10) 
11) 
12) 
Step-by-step explanation:
Parallel lines have same slope and slopes of perpendicular lines are negative reciprocals of each other.
<u>9) through (-3, 2), parallel to </u>
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<u>10) through (-5, -1), parallel to </u>
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<u>11) through (2, -5), perpendicular to </u>
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<u>12) through (-3, 5), perpendicular to </u>
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