On a coordinate plane, a 5-sided figure has points A prime (negative 4, negative 2), B prime (negative 4, 4), C prime (6, 4), D prime (8, 1), and E prime (6, negative 2). Figure ABCDE was reflected across the line y = x to create figure A'B'C'D'E'. What are the coordinates of the pre-image of E'?
E(, )