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

Logarithmic and exponential functions — practice question

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Starting from $13^x = (2.8)^y$, apply logarithms to demonstrate that $y = kx$ and determine the value of $k$ 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: “State or indicate $y\log 2.8 = x\log 13$” …

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