Question

Determine the domain of the function. f(x)=sqaureroot 7 +x

please help me!

Answer 1

okay ill help

Answer 2

http://openstudy.com/study#/updates/521167d8e4b0450ed75d2e7f

Answer 3

got it

Answer 4

\(\color{#000000 }{ \displaystyle f(x)=\sqrt{x+7} }\)
Domain, is the (set of) values that you can plug instead for x, into the function.

Since square roots can't have a negative inside of them, therefore, must be that \(\color{#000000 }{ \displaystyle x+7\ge 0 }\).

Answer 5

And if, \(\color{#000000 }{ \displaystyle x+7\ge 0 }\)
then \(\color{#000000 }{ \displaystyle x\ge {\color{red}{?}} }\)

Answer 6

@SolomonZelman good job