Final answer:
The command plot (x₁, y₁, x₂, y₂) in computer programming allows you to plot two line graphs, which represent relationships between two variables (x and y). If a function is known, such as y = x² + 2, you can produce and plot a table of (x,y) values to observe trends and changes over time.
Step-by-step explanation:
In order to plot two graphs, y₁ vs. x₁ and y₂ vs. x₂, you can use the command plot (x₁, y₁, x₂, y₂). This command is generally used in various programming languages like Python and MATLAB to plot data. Firstly, you need to understand that the horizontal axis or x-axis is considered the independent variable, whilst the vertical axis or y-axis is the dependent variable. You proceed to plot these pairs, creating a line graph. Line graphs show a relationship between two variables - an independent and dependent, represented on the x and y axes respectively.
ly connected in the order they occur and the result is a visual representation of how your data points have changed over time. So, if we have a function such as y = x² + 2, we can produce a table of a few (x,y) values and plot the line based on these data pairs. This plotted graph enables us to understand the changes or trends of these physical quantities over time.
Learn more about Plotting line graphs