Question

find the domain and sketch the graph..
f(x)=√x+9

Answer 1

\[f(x)=\sqrt{x+9}?\]

Answer 2

You cant take the square root of a negative number so, Whatever is in the square root has to be greater than or equal to 0
\[x+9\ge0\]

Answer 3

yes, so the domain should be {x|x≥9} correct? how would that be graphed?

Answer 4

The domain would be all numbers greater than or equal to -9.
\[x \ge-9\]

\[(-9,\infty)\] is your domain

Answer 5

You know this is a transformation of the square root function, just take the graph of \[y=\sqrt{x}\] and translate it left 9 units

Answer 6

okay i think i understand thank you !!!