Linear Models and Functions

"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.