andre21210 andre21210
  • 04-08-2015
  • Mathematics
contestada

Let f(x) = x2 - 81. Find f-1(x).

Respuesta :

JaySL JaySL
  • 04-08-2015
This is equivalent to finding a function g in which [tex]g(x^2-81)=x[/tex].

We simply reverse the actions of the initial function by adding 81 back and taking the square root.  Therefore, [tex]f^{-1}(x)=\sqrt{x+81}[/tex].
Answer Link

Otras preguntas

There was a change in the environment between generations 10 and 30. the change likely .
why did the oromo population movement succeed​
Hello everyone can you answer this for me? What is A in the equation attached? Please and thank you.
The perimeter of the triangle at the right is 22.6 in. What is the value of n? A. 3.5 B. 4.6 C. 7.8 D. 9.4
Calculate the pH of a solution whose pOH is 11.
Which line from the poem best describes the setting? A. The birds of these woods would call you King!" B. Said the Fox, in admiring tones "My word! C. And Re
Which speech made a stronger use of the appeal to reason? Write two paragraphs that compare and contrast both speeches in terms of their appeals to reason. Prov
who was the first African American player in the MLB​
What happened when odysseus appealed to the queen of the phaeacians
Please answer asap, 30+ points