Note that WXYZ has vertices W (2, 5), X(6, -4), Y(-1, -7), and Z(-5, 2). Complete the following to determine if WXYZ is a parallelogram. (a) Find the length of WX and the length of YZ. Give exact answers (not decimal approximations). Length of WX: Length of YZ: U (b) Find the slope of WX and the slope of YZ. Slope of WX: I Slope of YZ: 0 (e) From parts (a) and (b), what can we conclude? The quadrilateral is a parallelogram because it has one pair of opposite sides that are congruent, even though those sides are not parallel. The quadrilateral is a parallelogram because it has one pair of opposite sides that are both congruent and parallel. The quadnilateral is a parallelogram because it has one pair of opposite sides that are parallel, even though those sides are not congruent. O The quadrilateral is not a parallelogram. Olt cannot be determined if the quadrilateral is a parallelogram.

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