linear models and functions discussion

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“Linear Models and Functions” Please respond to the following:

  • Describe applications of the Cartesian coordinate system to plot a real-world situation. In your description, indicate the characteristics of each coordinate, and a point in terms of specific x and y coordinates.
  • Explain what the author means by “fickle picker” to help determine if a set of ordered pairs represents a function and how it can be used to identify a function. Provide an example.
  • Explain whether it matters or does not matter which values you pick for x when you graph a line by plotting points. Explain your reasoning.
  • Provide an internet link that helps you better understand graphing.  State what parts of the link helped you the most.  Be sure to use one that has not already been given in the Instructor Insights section as well as this discussion forum.  

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