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Write the inverse function for the function, ƒ(x) = 1/2 x + 4. Then, find the value of ƒ -1(4). Type your answers in the box.

ƒ -1(x) =

ƒ -1(4) =

User Pesche
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1 Answer

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Answer:


{f}^( - 1) (x) = 2x - 8


{f}^( - 1) (4) = 0

Explanation:


y = (1)/(2) x + 4 = = = > \\y - 4 = (1)/(2) x = = = > \\ 2y - 8 = x = = > {f}^( - 1) (x) = 2x - 8


(1)/(2) x + 4 = 4 = = = > \\ (1)/(2) x = 0 = = = > x = 0

User Mahmoud Alkomy
by
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