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Unformatted text preview: Since 2 − x  gives the distance from x to 2, the question says that the distance from x to 2 must be less than 6. So, find all numbers x whose distance from 2 is less than 6. We indicate the set of all numbers within a distance 6 of 2 in the figure below. 6 6 2 − 6 = −4 2 2 + 6 = 8 You can now read the solution directly from the figure: −4 < x < 8, or in interval notation (−4, 8). Correct answer is: ( − 4, 8)...
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 Spring '08
 CHUCKROW
 Metric space

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