hails961
hails961 hails961
  • 18-03-2019
  • Mathematics
contestada

How do I confirm that f and g are inverses?

How do I confirm that f and g are inverses class=

Respuesta :

jimrgrant1 jimrgrant1
  • 18-03-2019

Answer:

see explanation

Step-by-step explanation:

To show f and g are inverses we require to show that

f(g(x)) = x and g(f(x)) = x

f(g(x))

= f(6x - 4)

= [tex]\frac{6x-4+4}{6}[/tex] = [tex]\frac{6x}{6}[/tex] = x

-----------------------------------------------------------------------------

g(f(x))

= g([tex]\frac{x+4}{6}[/tex] )

= ( 6 × [tex]\frac{x+4}{6}[/tex]) - 4

= x + 4 - 4 = x

-------------------------------------------------

Hence f and g are inverses

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