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Robert Massa · Answer 1 · 2017-12-18T12:54:34+0000

Lim [abs(x - 7)] / [x - 7] as x -> 7^-
For x = 6.9: Lim[abs(6.9 - 7) / (6.9 - 7)] = -1
For x = 6.99: Lim[abs(6.99 - 7) / (6.99 - 7)] = -1
For x = 6.999: Lim[abs(6.999 - 7) / (6.999 - 7)] = -1

Therefore, Lim [abs(x - 7)] / [x - 7] as x -> 7^- is -1

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