abbyrobinson04
abbyrobinson04 abbyrobinson04
  • 09-09-2020
  • Mathematics
contestada

if f(x) and f^-1(x) are inverse functions of eachother and f(x)=2x+5, what is f^-1(8)

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sqdancefan
sqdancefan sqdancefan
  • 09-09-2020

Answer:

  1.5

Step-by-step explanation:

The value of x such that f(x) = 8 is ...

  8 = 2x +5

  3 = 2x

  1.5 = x

f^-1(8) = 1.5

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