Question: A cosine function has a horizontal stretch by a factor of 4, and a phase shift of % units to the left. The function is:

A cosine function has a horizontal stretch by a factor of 4, and a phase shift of % units to the left. The function is: 0 all at) 2 cos(ia: | 112) 0 hi f($) = eos(i:c | g) 0 c1f(m)=ms(4m+ %) 0 cl} f(:13) = cos(4:c + 4?\")

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