Learn what a function is and how to determine if a given mapping is a function. Use graphs, tables of values and diagrams. Learn about and how to use the Vertical Line Test.
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The scalar equation of a line is another way to represent a linear relationship. Learn more about the scalar form of the equation of a line and practice writing the scalar equation form of a line.
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Another form of interpreting the linear relation is with the parametric equation of a line. In this form we have an unknown or parameter value. Depending on how many parameters there are we determine the type of “plane” we have. In our case here we will see one parameter indicating that we have a line.