Introduction
Graphical Analysis is a straightforward program that enables the user to graph, analyze and find the relationship of variables easily (Guerrero 55). Data of the variables is entered from the computer keyboard, extracted from a disk saved file, or pasted from a clipboard. Graphical Analysis is as well a document creator, with the ability to compile different pages to a single document. In an experiment that involves analyzing the relationship between the density and mass of a substance, Graphical Analysis does it very well. The equation y=kx where y denotes the dependent variable, x denotes the independent variable, and k is a proportionality constant. Various curves plotted on the Graphical Analysis program determines the relationship between the two variables.
Procedure
Results and discussions
In exercise 1, the graph of y against x showed a directly proportional relationship between the two variables as shown in fig. 2 below.
The results of exercise 2 presented an inverse relationship between the variables.
The results of exercise 3 presented a disproportional relationship between x and y. y varied exponentially with x.
Calculations
Exercise 1.
Exercise 2.
Exercise 1.
Conclusion
In order to determine the relationship between the x and y variables in every exercise (problem), the value of n got in the graphical experiment enable in the modeling of the equation that is used to calculate proportionality constant (k) for every problem. This is done by analyzing the nature of curve and obtaining n to determine the relationship between the variables.
Work cited
Guerrero, Hector. Excel Data Analysis: Modeling and Simulation. Heidelberg: Springer, 2010. Print.
