Posted by **Soly** on Thursday, September 13, 2007 at 9:02pm.

Could you please check my answers and help me with one?

Find the domain of the function.

f(x)=-8x-2

-I got the domain being (negative infinity, postive infinity).

g(x)= 3x/x^2 -49 (This one I dont understand how to find the domain)

- Algebra -
**bobpursley**, Thursday, September 13, 2007 at 9:17pm
yes on domain

I assume the second is g(x)=3x/(x^2-49)

can x be +-7 ?

- Algebra -
**Soly**, Thursday, September 13, 2007 at 9:33pm
I try to figure out it, and since x^2-7 is a perfect square (x+7)(x-7), I thought x couldnt be +-7?

## Answer this Question

## Related Questions

- Algebra- ASAP - Could you please help me and check my answers? Find the domain ...
- Functions - Could you please help me and check my answers? Find the domain of ...
- Math Please Check - Please tell me if this are right. Thank you! Find the exact ...
- Algebra - I know what the answer is just not how to exopress it. Can someone ...
- Algebra - I know what the answer is just not how to exopress it. Can someone ...
- Quadractic Functions - Please check my answers. Find the x-intercepts (if any) ...
- Check my precalc - 1. find without a calc log base 5 of cubed root of 25. I got ...
- Please check my Caclulus - 1. Find all intervals on which the graph of y=(x^2+1...
- Algebra - f(x)=root sign, and inside that x-2 and g(x)x-7. Which of the ...
- Algebra - Given f(x)=rootsignx-2 and g(x) = x-7 what is the domain of the ...