Mathematics 9709 · AS & A Level · Logarithmic and exponential functions

Logarithmic and exponential functions — practice question

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Use logarithms on $13^x = (2.8)^y$ to show that $y = kx$, then determine $k$ correct to $3$ significant figures.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Show, or make clear, that $y\log 2.8 = x\log 13$” …

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