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Let f(x) = 2a^(2x) for some positive constant a. Express f(kx+2) in terms of f(x) if...

Let f(x) = 2a^(2x) for some positive constant a. Express f(kx+2) in terms of f(x) if k is a positive constant.

2) Determine the period, amplitude, phase shift and vertical shift of y = 3 cos(2x - 2PI/5) + 1.5. Draw the graph over 2 cycles.

3) Draw the graph f(x) = (2x + 1)/(x^2 - 1)

Math   Precalculus   
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