Logarithms: y = log_b(x)

Change x and the base to see the logarithm and where it sits on the curve.

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Questions students ask

What is a logarithm?

The power you raise the base to: log₂8 = 3 because 2³ = 8.

What formula does it use?

y = log_b x ⇔ bʸ = x; log_b x = ln x / ln b.

Free notes on logarithms

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