When travelling on a road, you are either going to travel parallel to another road or you will eventually cross it. Lines are very much the same. Two lines on the Cartesian plane are either parallel or intersecting. If lines are intersecting, we want to find where they cross or their point of intersection.
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The vector equation of a line is another form of interpreting a line but now with a different structure called a vector. Again, we will see a parameter in this form. A single parameter indicating that we are representing a linear relationship.
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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