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HELP ASAP HARDISH MATH QUESTION:?

Given the parent functions f(x) = log10 x and g(x) = 5x − 2, what is f(x) • g(x)? f(x) • g(x) = log10 x^5x − 2 f(x) • g(x) = log10 (5x − 2)^x f(x) • g(x) = 5x log10 x + 2 log10 x f(x) • g(x) = 2 log10 x − 5x log10 x

2 Answers

See the link for an explanation. http://www.mathsisfun.com/sets/functions-compositi… So if you mean (f º g)(x), then it is f( g(x)), which if you think about it as f(g) = log[10](g), so then f(g(x)) = log[10](5x – 2), and I do not see that as one of your choices.... Show More
n log x = log x^n, thereforef(x) * g(x) = log x^(5x-2) Learn to use parentheses. They are vital !!!(And “log” usually IMPLIES a base of 10. It is unnecessary to state it explicitly).... Show More

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