identify the domain of an equation that is like y=radical4x+4-2?

Question

anonymous · Answer

domain is simply the numbers you can plug in

anonymous · Answer

so any valid x value.

jhannybean · Answer

you can input any negative values inside a square root, unless you want imaginary numbers, to what else can you put in there?

Which x-values?

anonymous · Answer

My homework just says identify the domain. 
$$\sqrt{4x+4}-2$$

anonymous · Answer

the inside the square root cant be negative 

so we find out what x values makes the inside negative

4x+4 = 0
solve for x

4x=-4   no divide both sides by 4

x=-1

so  can not be below -1 or the inside will be negative.

so -1 to infinity is the domain.

anonymous · Answer

If I'm right subscribe and like me!!

anonymous · Answer

thanks :)