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sleepyjess
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If f(x) = log2 (x + 4), what is f^−1 (3)?
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 10 months ago
 10 months ago
sleepyjess Group Title
If f(x) = log2 (x + 4), what is f^−1 (3)? 0 2 4 8
 10 months ago
 10 months ago

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sleepyjess Group TitleBest ResponseYou've already chosen the best response.0
@agent0smith
 10 months ago

kc_kennylau Group TitleBest ResponseYou've already chosen the best response.1
\[3=\log_2x+4\]solve for x
 10 months ago

sleepyjess Group TitleBest ResponseYou've already chosen the best response.0
how do you get that? it is the inverse
 10 months ago

kc_kennylau Group TitleBest ResponseYou've already chosen the best response.1
exactly
 10 months ago

sleepyjess Group TitleBest ResponseYou've already chosen the best response.0
but that isnt how you get to the inverse
 10 months ago

douglaswinslowcooper Group TitleBest ResponseYou've already chosen the best response.0
1/log2 (7)
 10 months ago

sleepyjess Group TitleBest ResponseYou've already chosen the best response.0
I know that I need to switch the x and y but that is as far as I got.
 10 months ago

kc_kennylau Group TitleBest ResponseYou've already chosen the best response.1
just the same, but my method is faster :P
 10 months ago

douglaswinslowcooper Group TitleBest ResponseYou've already chosen the best response.0
"Inverse" may mean reciprocal, as so x^1 = 1/x but it may mean going from ln x to exp(x), for example. Something is wrong, as none of your options correspond to my thought.
 10 months ago

kc_kennylau Group TitleBest ResponseYou've already chosen the best response.1
inverse as in inverse function he means
 10 months ago
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