More on Lines

One of my least favorite IB topics. Nothing to do but jump in with both feet…

Parallel & Coincident Lines

Parallel Lines - Angle between the lines is zero.

Coincident Lines - Same line or two lines that lie on top of one another

Perpendicular Lines

Perpendicular Lines - have an angle of 90 degrees between them

Cartesian Equations

Occasionally the IB will ask you to write a "Cartesian equation" from a vector equation of a line. This is often done to help you with finding intersection points and such.

Intersecting Lines/Points

It is very common for the IB to ask at what point two lines intersect or IF they intersect.

Collisions - More Than Just Intersecting

Collisions are a half step up in difficulty from intersection points as we now have to consider time as well.

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