SOLUTION: Write down in interval notation the domains of the function g(x)= {{{sqrt(x-7)}}}

Question 142087: Write down in interval notation the domains of the function g(x)=
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given expression

Remember you cannot take the square root of a negative value. So that means the argument must be greater than or equal to zero (i.e. the argument must be positive)

Set the inner expression greater than or equal to zero

Add 7 to both sides

Combine like terms on the right side

So that means x must be greater than or equal to in order for x to be in the domain

So the domain in interval notation is: [7,

)

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