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Algebra/Parallel and Perpendicular Lines
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Question
How to you write an equation of a line that is parallel to a given line and passes through a point? Perpendicular?
One standard equation for a line is y=mx+b where m is the slope and b is the y-intercept. Any parallel line will have the same m but different b. Put the values for a given point into the equation and solve for the new b. A perpendicular line will have the slope
-1/m.
Again, put in the values for a given point and solve for the new b.
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