Will give brainest me which of the following statements best describes the graph of x + y = 3? it is a line which intersects the x-axis at (3, 3). it is a line which intersects the y-axis at (3, 3). it is a line joining the points whose x- and y-coordinates add up to 6. it is a line joining the points whose x- and y-coordinates add up to 3.