Which graph represents r = 2 2 cos(θ)? On a polar coordinate plane, a circle crosses the x-axis at (0, 0) and (negative 4, 0). It has a cardioid at (0, 0). On a polar coordinate plane, a circle crosses the x-axis at (0, 0) and (4, 0). It has a cardioid at (0, 0). On a polar coordinate plane, a circle crosses the y-axis at (0, 0) and (0, 4). It has a cardioid at (0, 0). On a polar coordinate plane, a circle crosses the y-axis at (0, 0) and (0, negative 4). It has a cardioid at (0, 0).