Semi-Logarithmic Scale: What You Need to Know

Understanding the Semi-Logarithmic Scale

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Question

The semi-logarithmic scale is so named because:

Answers

A. Values on the x-axis are equally spaced if their logarithms are the same.

B. Values on the y-axis are equally spaced if their logarithms are the same.

C. Values on the x-axis are equally spaced if there are equal differences in their logarithms.

D. Values on the y-axis are equally spaced if there are equal differences in their logarithms.

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Explanations

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A. B. C. D.

Values on the y-axis are equally spaced if there are equal differences in their logarithms. Thus, 100 is as close to 10, as 10 is to 1. (In base 10, log 100 - log 10 =

1, log 10 - log 1 = 1; in base e, the differences are also the same, each equal to 2.302.)

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