Let z = (4 + 2i). Which graph represents 2z? On a coordinate plane, the y-axis is labeled imaginary and the x-axis is labeled real. Point z is (4, 2) and 2 z is (6, 4). On a coordinate plane, the y-axis is labeled imaginary and the x-axis is labeled real. Point z is (4, 2) and 2 z is (4, 4). On a coordinate plane, the y-axis is labeled imaginary and the x-axis is labeled real. Point z is (4, 2) and 2 z is (2, 1). On a coordinate plane, the y-axis is labeled imaginary and the x-axis is labeled real. Point z is (4, 2) and 2 z is (8, 4).