Question

f(x)=√x-4

domain and range in interval notation

Answer 1

D:\[[ 4, \infty]\]
R:\[[0, \infty]\]

Answer 2

yea but ( or [

Answer 3

@jerguy1928

Answer 4

theres a difference

Answer 5

That there is... If you use a [, then you include the leftmost value, if you use a (, you don't include the leftmost value, but anything really close to it but still bigger is included.

Answer 6

which ones are they?

Answer 7

Well, let's take another look at your function \(\large f(x)=\sqrt{x-4}\)
Now, in radicals, you may not have a value inside it that's negative, right?

Answer 8

no

Answer 9

i mean right

Answer 10

Well, that means
\[\large x-4 \ge 0\]