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anonymous
 one year ago
Given the parent functions f(x) = log10 x and g(x) = 5x − 2, what is f(x) • g(x)?
anonymous
 one year ago
Given the parent functions f(x) = log10 x and g(x) = 5x − 2, what is f(x) • g(x)?

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Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1\[f(x)g(x) = \log_{10}x (5x2)\]

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1You're just multiplying the functions

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thanks! Can I ask one more?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0If f(x) = log2 (x + 4), what is f−1(3)?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1The \[f^{1}\] represents inverse

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1To find the inverse: Replace f(x) with y Switch x's and y's, so put x where y is and x where y is. Solve for y Replace y with f^1(x)

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1Once you find the inverse just plug in 3 into the function and evaluate :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im confused on how to solve for "Y"

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1Since it's \[\log_2\] as the base we will have to take the power of 2 to on both sides so the following \[\huge 2^x = 2^{\log_2(y+4)} \implies 2^x = y+4\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hmm then wouldnt we have to get y alone?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Would the answer be 8?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1f(a) =b , hence \(f^{1} (b) =a\) ok?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1we need find \(f^{1} (3) \) of \(f(x) = log 2(x+4)\), right? That is just let log 2(x+4) =3, and solve for x.

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1You can do either way you should get same result

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1No, \[y=2^x4 \implies f^{1}(x) = 2^x4 \implies f^{1}(3) = 2^34\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh! okay so then I got, 4

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1confirm: \(log (2(x+4))\) or (x+4)*log 2??

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1Yes, 4 sounds betters :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.02x2x2=4x2=8 84=4 :)

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1I think the original question was \[\log_2(x+4)\] right?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1Ok we're good then

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yay! Thanks guysss:)
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