At about the 0:06 mark, the teacher says it wants us to find the intersection of the two points; he should have said the two lines. He also says points instead of lines at the very end of the video.
How to find the intersection point of two linear equations
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Questions answered by this video:
How do I find the intersection point of 2 lines from their equations?
What point do the lines x+y=3 and 3x-2y=4 intersect at?
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In this lesson, the teacher shows how to find the intersection point of two lines algebraically.