In the matrix equation, what are the values of x and y ? 1 half the 2 by 2 matrix, row 1, column 1, 4 column 2, 8 row 2, column 1, x plus 3 column 2, negative 4 minus 3 the 2 by 2 matrix, row 1, column 1, 1 column 2, y plus 1 row 2, column 1, negative 1 column 2, negative 2 is equal to the 2 by 2 matrix, row 1, column 1, negative 1 column 2, negative 5 row 2, column 1, 7 column 2, 4