Graphing lines using parametric equations

by

Johnie Forsythe

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Suppose you have a given point (7, 5) and a given slope of 3. How can you graph this line using parametric equations?

First you can use the point-slope formula to derive the slope intercept form of the equation.

Recall: point slope form is

By substituting the appropiate values into the formula, we have:

 

 

Click here to view a three dimensional representation of the equation.