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Fill in the blank.

If a function [tex]\( f \)[/tex] has an inverse and [tex]\( f(-3) = 6 \)[/tex], then [tex]\( f^{-1}(6) = \)[/tex] _______.

Sagot :

To find the value of the inverse function [tex]\( f^{-1}(6) \)[/tex], we need to understand the relationship between a function and its inverse.

Given: [tex]\( f(-3) = 6 \)[/tex].

To understand this in the context of the inverse function, we should know that the inverse function, [tex]\( f^{-1} \)[/tex], essentially "reverses" what the original function [tex]\( f \)[/tex] does. Therefore, if [tex]\( f(x) \)[/tex] maps [tex]\( x \)[/tex] to [tex]\( y \)[/tex], then [tex]\( f^{-1}(y) \)[/tex] will map [tex]\( y \)[/tex] back to [tex]\( x \)[/tex].

In this case, [tex]\( f(-3) = 6 \)[/tex] means that when the input to the function [tex]\( f \)[/tex] is [tex]\(-3\)[/tex], the output is [tex]\( 6 \)[/tex].

So, for the inverse function [tex]\( f^{-1} \)[/tex]:
[tex]\[ f^{-1}(6) \][/tex]
should give us the input value [tex]\(-3\)[/tex], because the inverse function undoes the operation of the original function.

Therefore, if [tex]\( f(-3) = 6 \)[/tex], then:
[tex]\[ f^{-1}(6) = -3 \][/tex]

Hence, the value that fills in the blank is [tex]\(-3\)[/tex].

So, completing the statement:

If a function [tex]\( f \)[/tex] has an inverse and [tex]\( f(-3) = 6 \)[/tex], then [tex]\( f^{-1}(6) = -3 \)[/tex].