Note: Either public, protected or private keyword is used in place of access_specifier term used in the above code. Example of public, protected and private inheritance in C++
The graph of a relation of the form y = 5 is a line parallel to the x-axis because the y value never changes. A line parallel to the x-axis is called a horizontal line. The graph of a relation of the form x = 5 is a line parallel to the y-axis because the x value never changes. A line parallel to the y-axis is called a vertical line. Plot the graph of each of the following relations: horizontal line, vertical line.
1 Generally, you should place your independent variable on the x-axis of your graph and the dependent variable on the y-axis.  Be sure to label the axes of your graphâ don't forget to include the units of measurement (grams, centimeters, liters, etc.).