Rectangle A B C D ABCDA, B, C, D is graphed in the coordinate plane. The following are the vertices of the rectangle: A ( − 8 , − 6 ) , A(−8,−6),A, left parenthesis, minus, 8, comma, minus, 6, right parenthesis, comma B ( − 3 , − 6 ) B(−3,−6)B, left parenthesis, minus, 3, comma, minus, 6, right parenthesis, C ( − 3 , − 4 ) C(−3,−4)C, left parenthesis, minus, 3, comma, minus, 4, right parenthesis, and D ( − 8 , − 4 ) D(−8,−4)D, left parenthesis, minus, 8, comma, minus, 4, right parenthesis. Given these coordinates, what is the length of side A B ABA, B of this rectangle? units