Question: For questions 20-22, determine if AB and CD are parallel, perpendicular or neither. 20. A(-11, 5), B(-8, 4), C(8, -7), D(-1, -4) m ( AB)

For questions 20-22, determine if AB and CD are parallel, perpendicular or neither. 20. A(-11, 5), B(-8, 4), C(8, -7), D(-1, -4) m ( AB) m (CD Types of Lines 21. A(-3, 8), B(1, 15), C(10, -9), D(3, -5) In ( AB m (CD) Types of Lines TATT

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