A period on the periodic table is a horizontal row. The atoms in this row show a trend in their width, and in the amount of work needed to make them an ion, among the fe â¦ w other similarities.
The x-axis and y-axis Remembered! The x-axis and y-axis are two lines that create the coordinate plane. The x-axis is a horizontal line and the y-axis is a vertical line. I'm sure you've heard that a million times, but it might hard for you to remember which one is which. Here is a little trick to help you remember...
b represents the y-intercept of the line: where the line crosses the y-axis. It can be found by setting x=0 (the line crosses the y-axis when and only when x=0.) An example of such a line, y=3x+7âb crosses the y-axis at the point (0,7). When x=0, you see that y=7=b.