reynagasoraya555 reynagasoraya555
  • 19-10-2018
  • Mathematics
contestada

What is the domain of the function f(x) = sqrt1/3x+2

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altavistard
altavistard altavistard
  • 19-10-2018

Answer:

x ≥ -6

Step-by-step explanation:

Please use parentheses around the argument (input) of the sqrt function:

Better:  sqrt( 1/3x + 2)

Much better:  sqrt ( (1/3)x + 2)

The input to the sqrt function must be 0 or greater.  Thus, we must solve the equation (1/3)x + 2 ≥ 0.  Mult. all 3 terms by 3, we get x + 6 ≥ 0, or x ≥ -6.



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