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...
The x-and y-intercepts of a graph. The x-intercept of a graph is that value of x where the graph crosses the x-axis. The y-intercept is the value of y where it crosses the y-axis. To find the x-intercept, we have to find the value of x where y = 0 -- because at every point on the x-axis, y = 0.o find the y-intercept of a graph, we must find the value of y when x = 0 -- because at every point on the y-axis, x = 0. But when the equation has the form. y = ax + b,