Tuesday

September 23, 2014

September 23, 2014

Posted by **Philip** on Wednesday, September 12, 2012 at 7:25pm.

sqrt of x^2-9

- Pre-Cal -
**Bosnian**, Wednesday, September 12, 2012 at 9:07pmThe domain of a function is the set of all possible input values, which allows the function formula to work.

In this case when x ^2 > 9 then x ^ 2 -9 < 0

Square root negative numbers are complex numbers.

So domain of your function :

x ¡ 2 > 9

x > + OR - 3

thats mean

x <= - 3 and x >= 3

Becouse numbers less of - 3:

-4,-5,-6...

numers larger of 3:

4,5,6...

DOMAIN:

x <= - 3 and x >= 3

OR

(-infinity,-3) U (3,infinity)

**Answer this Question**

**Related Questions**

pre-cal - Find the roots of the function f(x)= x^2+2x+2 Determine f(x) a) (x+1-i...

Pre-Cal - Find the domain for the function f(x)=-2x^(2)÷-x^(2)-6x-27

pre cal - Find f of g of h and state the exact domain. f(x) = sqrt x g(x)= e^x...

Pre-Cal. - find the inverse of the following function. Find the domain, range,...

Pre-Cal(Please check) - 1)f(x) = -x + sqrt 4 - x^2 Find f(-2) -(-2) + sqrt 4...

Pre-Cal - Give the domain of the function and identify any vertical or ...

Pre-Cal - Give the domain of the function and identify any vertical or ...

pre-cal: graphs of functions- fill in the blank - To find the domain of a ...

Pre-Cal(Please help) - Give the domain of the function and identify any vertical...

Pre-Cal. - find the domain, range and the asymptote(s), of each function on the ...