Geometry

Question Analysis  

Classify the quadrilateral using vertex coordinates by analyzing slopes and distances to determine parallelism, side lengths, and symmetry.  

Key Concept Explanation  

Slope Formula: . Equal slopes indicate parallel sides; slopes with a product of indicate perpendicular sides.  

Distance Formula: to check for congruent sides.  

Step-by-Step Solution  

1. Vertices:  

, , , .  

2. Calculate slopes:  

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