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sleepyjess
 one year ago
If f(x) = log2 (x + 4), what is f^−1 (3)?
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sleepyjess
 one year ago
If f(x) = log2 (x + 4), what is f^−1 (3)? 0 2 4 8

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kc_kennylau
 one year ago
Best ResponseYou've already chosen the best response.1\[3=\log_2x+4\]solve for x

sleepyjess
 one year ago
Best ResponseYou've already chosen the best response.0how do you get that? it is the inverse

sleepyjess
 one year ago
Best ResponseYou've already chosen the best response.0but that isnt how you get to the inverse

douglaswinslowcooper
 one year ago
Best ResponseYou've already chosen the best response.01/log2 (7)

sleepyjess
 one year ago
Best ResponseYou've already chosen the best response.0I know that I need to switch the x and y but that is as far as I got.

kc_kennylau
 one year ago
Best ResponseYou've already chosen the best response.1just the same, but my method is faster :P

douglaswinslowcooper
 one year ago
Best 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.

kc_kennylau
 one year ago
Best ResponseYou've already chosen the best response.1inverse as in inverse function he means
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