nairelisramos00100 nairelisramos00100
  • 19-02-2021
  • Mathematics
contestada

Please help!!
Given f(x) = 3x-4 and g(x) = 2x+6 , find (fog)(x)

Respuesta :

xKelvin
xKelvin xKelvin
  • 19-02-2021

Answer:

[tex](f\circ g)(x)=6x+14[/tex]

Step-by-step explanation:

We are given the two functions:

[tex]f(x)=3x-4\text{ and } g(x)=2x+6[/tex]

And we want to find:

[tex](f\circ g)(x)[/tex]

This is equivalent to:

[tex]=f(g(x))[/tex]

Then by substitution:

[tex]=f(2x+6)=3(2x+6)-4[/tex]

Evaluate:

[tex]=f(g(x))=6x+18-4=6x+14[/tex]

Therefore:

[tex](f\circ g)(x)=6x+14[/tex]

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