GOKUWESTON GOKUWESTON
  • 06-12-2019
  • Mathematics
contestada

i dont understand this

i dont understand this class=

Respuesta :

calculista
calculista calculista
  • 12-12-2019

Answer:

[tex]x\geq 2[/tex]

Step-by-step explanation:

we have

[tex]y=\sqrt{2x-4}[/tex]

we know that

The radicand must be greater than or equal to zero

so

[tex]2x-4\geq 0[/tex]

Solve for x

Adds 4 both sides

[tex]2x-4+4\geq 0+4[/tex]

[tex]2x\geq 4[/tex]

Divide by 2 both sides

[tex]x\geq 2[/tex]

so

The domain is the interval for x ----> [2,∞)

All real numbers greater than or equal to 2

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