Which of the following is the domain of the square root function?

x≤ 0
x 0
x≥ 0
all real numbers

Question

Which of the following is the domain of the square root function?

x≤ 0
x> 0
x≥ 0
all real numbers

ben00 · Answer

Looks easy but its wierd.

ben00 · Answer

Maybe you need to google?

gabrielv579 · Answer

ok thanks

mathmale · Answer

You might want to graph the square root function, or at least look it up.
Next, review "domain."  What does this word mean in the context of functions?

ajspeller · Answer

Remember that domain refers to the valid values for x when taking the square root of x.

mathmale · Answer

What is the square root of zero (0)?
What is the square root of -9?
What is the square root of 4?
A simple experiment like this one may help your understanding of the domain of the sqrt function.