SOLUTION: What is the domain in interval notation of square root 2x+7?

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Question 427833: What is the domain in interval notation of square root 2x+7?
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
You want the expression under the radical to be greater than or equal to zero. which means:
2x+7 >= 0
2x >= -7
x >= -7/2
.
In interval notation:
[-7/2, +oo)
where
oo means infinity