Math

How to solve | x + 1 | << 3 graphically?

Ty

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asked by Susan
  1. |x+1| = |x-(-1)|

    That is the distance from x to -1

    So, on the number line, mark the two points which lie 3 units away from -1: -4 and +2

    Shade the area between those two points, where the distance from -1 is less than 3.

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    posted by Steve

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