xxspid3rmanswif33xx
xxspid3rmanswif33xx xxspid3rmanswif33xx
  • 17-12-2018
  • Mathematics
contestada

please help i dont understand

please help i dont understand class=

Respuesta :

JK94 JK94
  • 17-12-2018

Answer:

D


Step-by-step explanation:

[tex]f(x) = 3x + 1[/tex]


Changing x to y and y to x:


[tex]f(x) = 3x + 1 \\\ y = 3x + 1 \\\ x = 3y - 1 \\\ 3y = x + 1 \\\ y = \frac{x + 1}{3} \\\\\ f(x) = \frac{x + 1}{3} \\\\\ f(x) = \frac{1}{3}x + \frac{1}{3}[/tex]


I hope I helped you

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