Respuesta :

Answer:

  • Domain: [tex](-\infty, \infty)[/tex]
  • Range: [tex](-\infty, 3][/tex]
  • Function: yes

Step-by-step explanation:

Domain is the set of x values, range is the set of y values.

For it to be a function, each value of x must map onto no more than one value of y.

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