Скачать или смотреть Graphing lines parallel to the axes

Lines Parallel to Axes
In two-dimensional geometry, there are two axes, which are the x-axis and the y-axis. A line that is parallel to the y-axis is of the form 'x=c', where 'c' is any real number and 'c' is the distance of the line from the y-axis. For example, the equation of a line which is of the form x = 3 is a line parallel to the y-axis and is 3 units away from the y-axis. Similarly, lines can be drawn parallel to the x-axis also. A line that is parallel to the x-axis is of the form 'y=b', where 'b' is a real number and is also the distance of the line from the x-axis. For example, the equation of a line which is of the form y = 2 is a line that is parallel to the x-axis and is 2 units away from the x-axis.