Match each of the following forms of the axis command to their descriptions. axis off turns off all axis labeling, tick marks, and background axis on returns a 4-element row vector containing the current limits of the plot v = axis makes the current axis box square axis normal sets the x and y limits of the plot to the specified values axis equal sets the axis increments to be equal on both axes axis square cancels the effect of axis equal and axis square axis ([xmin xmax ymin ymax]) turns on all axis labeling, tick marks, and