Exponential Functions and Graph Transformations with Constant Proportions

The lecture focuses on exponential functions, specifically y = e^(kx), and their graph transformations. It explains how multiplying the function or x-value affects the graph's stretch and shift. The gradient function is explored, showing that for y = e^(kx), the gradient is k times the function itself. The lecture generalizes this to any exponential function and discusses using exponential models when the gradient is proportional to the y-value.

What happens to the graph when we multiply the function by a scale factor?

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Explain the effect of adding a value to the x-value in the function y = e^(kx).

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How can we generalize the gradient function for any graph of the form y = e^(kx)?

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Describe the transformation that occurs when the value of k is increased in the function y = e^(kx).

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How does the gradient function relate to the original function y = e^(kx)?

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What is the significance of the gradient being proportional to the y-value in exponential functions?

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What does the transformation of the graph indicate when the scale factor is greater than 1?

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