Correct answer will get brainpower and +40 points! I need step by step instructions though wrong answers will get reported.

Q1: f (x) =2x - 9

Part A) Find f^-1 (3)

Part B) Find f^-1 (x)

These are the parts that need to be solved.
tysm for the help!

Respuesta :

Answer:

Given :-

f (x)=2x-9

To find:-

[tex]\sf f^{-1 (3)}[/tex]

[tex]\sf f^{-1 (x)}[/tex]

Solution :-

We need to find

[tex]f^-3 \\ f^{-x}[/tex]

[tex]\qquad{:}\longrightarrow\tt f^-3=2^{-3}-9 [/tex]

[tex]\qquad{:}\longrightarrow\tt -8-9 [/tex]

  • [tex]\qquad{:}\longrightarrow\tt f^{-3}=-17 [/tex]

[tex]\qquad{:}\longrightarrow\tt f^-x=2(-x)-9 [/tex]

[tex]\qquad{:}\longrightarrow\tt -2x-9 [/tex]

  • Multiply (-1)

[tex]\qquad{:}\longrightarrow\tt f^{-x}=2x+9 [/tex]