Answer:
If you are observing and are on opposite ends of the secondary function, then it is likely that you are looking at the relationship between two variables. The goal of the secondary function is to illustrate the relationship between the two variables in a graphical form. The relationship between the two variables can be expressed in an equation, known as a function. A function consists of independent variables which can be manipulated in order to calculate the dependent (or y-value) of the function.
To find the secondary function of two variables, the first step is to plot each of the variables on an x-y graph. The independent variables can be plotted on the x-axis and the dependent variables can be plotted on the y-axis. For each set of values for the independent variables, you can then calculate a value for the dependent variable. These points of data can then be plotted on the graph.
Once all of the data points have been plotted, you can use the graphing tool to connect the points and create a line. This line is the secondary function. In order to observe the relationship between the two variables, you can look at the line to determine the shape and/or look at the equation to determine the appropriate relationship.
Step-by-step explanation: