y= x^2

The domain is all real numbers such that:

x = (-inf, inf)

Now to notice that y is a positive number . Then the ramge is:

y= [ 0, +inf)

y = sqrt(1-x^2)

The domain is all x values such that 1- x^2 >= 0

==> -x^2 > = -1

==> x^2 = < 1

==> x =< 1 and x >= -1

==>the somain is [ -1, 1]

The range is : ( 0, 1]

y= sqrtx

x >= 0 ==> the domain is [ 0, inf)

(The entire section contains 2 answers and 226 words.)

## Unlock This Answer Now

Start your **48-hour free trial** to unlock this answer and thousands more. Enjoy eNotes ad-free and cancel anytime.

Already a member? Log in here.