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

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

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

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

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

sleepyjess
 2 years 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
 2 years ago
Best ResponseYou've already chosen the best response.1just the same, but my method is faster :P

douglaswinslowcooper
 2 years 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
 2 years ago
Best ResponseYou've already chosen the best response.1inverse as in inverse function he means
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