Equations of Lines

 teachMathematics: Equations of Lines

How do you define a line? It"s important to differentiate the flight path of one plane, boat, missile etc. from another, if you don"t, they may collide. Sketch 10 straight lines quickly on a piece of paper. How would you describe the picture you"ve produced to a friend on the phone as accurately as possible so that they reproduced your picture perfectly? That"s what this activity is all about - see the video below:

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