Math Arguments

Problems, Questions, and Puzzles to spark discussion and argument in the maths classroom.

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Item 98

Point-point-slope




Challenges

  1. Use four different digits (from 2-9) to create two points which determine a line with the greatest possible slope.

  2. Use four different digits (from 2-9) to create two points which determine a line with the least possible slope.

  3. Use four different digits (from 2-9) to create two points which determine a line with a slope as close to zero as possible.


What does "greatest" slope mean?
What does "least" slope mean ... most negative?


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Open Middle
Robert Kaplinsky
ALG1

Source: Robert Kaplinsky
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