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Determine whether a quadrilateral with vertices A(3, 7), B(1, - 1), C(- 6, - 3) and D(- 2, 5) is a parallelogram. Use the slope formula

Determine whether a quadrilateral with vertices A(3, 7), B(1, - 1), C(- 6, - 3) and-example-1

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Answer: slopes are not equal so ABCD is not a parallelogram
Determine whether a quadrilateral with vertices A(3, 7), B(1, - 1), C(- 6, - 3) and-example-1
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