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Suppose the function f(x) = cos(x) is transformed and the new rule for the translated function, g(x), is g(x) = (1/4)cos(x). Describe this transformation.

User Ola Bini
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Final answer:

The transformation of f(x) = cos(x) to g(x) = (1/4)cos(x) is a vertical scaling by a factor of 1/4, resulting in a new function with one-fourth the amplitude of the original cosine function without affecting its period or phase shift.

Step-by-step explanation:

The function f(x) = cos(x) undergoing a transformation to become g(x) = (1/4)cos(x) represents a vertical scaling transformation in mathematics. This transformation affects the amplitude of the cosine function. The new function, g(x), will have an amplitude that is one-fourth the amplitude of the original function, f(x), which means the maximum and minimum values that g(x) can take on have been scaled down by a factor of 1/4.

In the context of graphing the functions, the graph of g(x) will appear to be compressed vertically when compared to the graph of f(x). For example, while f(x) oscillates between +1 and -1, the transformed function g(x) will oscillate between +1/4 and -1/4. This change does not affect the period or the horizontal position of the graph, which means there is no phase shift or horizontal translation involved in this particular transformation.

User Daryl Spitzer
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