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Mathematics Goes to the Movies

by Burkard Polster and Marty Ross

Bloodfist VIII (1996)

4:54
Rick Cohen (Don “The Dragon” Wilson) is an ex-CIA operative who is now working as a math teacher.
RICK: If a line contains the origin (0,0), we can find a second point on this line by substituting some other value other than 0 for x or y.
What he says here is also written word by word underneath the graph.