keg2
keg2 keg2
  • 03-05-2018
  • Mathematics
contestada

What is the domain of the function

What is the domain of the function class=

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MrGumby
MrGumby MrGumby
  • 04-05-2018
5. D (the number under the square root symbol must be greater than or equal to 0. 


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jscuervo1992
jscuervo1992 jscuervo1992
  • 06-10-2019

Answer:

The domain of the function is x>=-7

Step-by-step explanation:

The domain is all the values that x can take so the function is defined, that means we can find a value of y

The sqrt is defined only for positive values and zero. So the expression in the sqrt must  satisfy that

6x + 42 >=0

We only have to find x

6x >=-42

x>=-42/6

x>=-7

So the answer is D x>=-7

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