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Mathematics 21 Online
OpenStudy (anonymous):

If f(x) = −x − 1 and g(x) = 4x − 1, find f[g(−2)]

OpenStudy (lgbasallote):

do you have an idea what you'll do?

OpenStudy (cwrw238):

f(g(x) can be described as a 'function of a function' - the' x' in f(x) is replaced by g(x) f(x) = -x-1 so f(g(x) = - (4x-1) - 1

OpenStudy (cwrw238):

f(g(-2)) is found by replacing x in f(g(x)) by -2

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