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What is the tool used to show the relationship between two variables?
A function.
Function of a magnetic compass?
The function of a magnetic compass is to show the direction toward the magnetic poles of the Earth. It is used as a navigation tool.
What term is used to describe a represntation of a thing or system and can be used as a way to test hypotheses?
A graph is a representation of a thing/system, and can be used to test a hypothesis. For example, if you have a graph of a trend you can find the function of that trend. Then, you can plug in values the graph defines--say, at 2 the graph reaches 5--and if the function works, you know you have modeled the phenomenon correctly. This function testing can work to test a hypothesis, especially in finding trends.
What is a visual or mathematical representation used to develop scientific explanations?
A visual or mathematical representation used to develop scientific explanations is called a model. A model can be a diagram, graph, equation, or any other representation that helps scientists understand and explain a scientific phenomenon or process. Models are used to simplify complex concepts and aid in the development of theories and predictions.
What is used to show the relationshhip between two variables?
A scatterplot, if the relationship is inexact - like height and weight. A line graph for exact relationships. An equation or function may be used for exact relationships.
