Lesson 1

The value of x could be 1.4 or 11/3; these values are positive and between 1 and 1.5. Diagram C: The value of x is definitely positive, because -x is negative (for example, -(-1.5)=1.5). The value of x is definitely between 1 and 2, since the distance of -x from 0 is a little greater than 1. ................
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