Thursday

September 18, 2014

September 18, 2014

Posted by **Jena** on Thursday, February 3, 2011 at 8:43pm.

Posted by Jena on Thursday, February 3, 2011 at 7:32pm.

Find the domain of the function.

f(x)=(sqrt x+6)/(-2x-5)

Write your answer as an interval or union of intervals.

Algebra - David, Thursday, February 3, 2011 at 7:42pm

(-6,-5/2)and(-5/2,infinity)

Algebra - Reiny, Thursday, February 3, 2011 at 7:46pm

the simplest way to describe the domain:

x ? -6 , x ? -5/2

Algebra - Jena, Thursday, February 3, 2011 at 7:52pm

I'm lost

- Algebra-still need some help -
**helper**, Thursday, February 3, 2011 at 9:18pmFor the domain, the denominator can't equal zero.

-2x - 5 = 0

-2x = 5

x = -5/2

So, x cannot equal -5/2

All x not equal to -5/2

For the numerator, you cannot have a negative inside the square root.

x + 6 >= 0

x >= -6

All x >= -6

- Algebra-still need some help -
**Jena**, Thursday, February 3, 2011 at 9:23pmI get

(-inf,-5/2)U[-6,infin) but it doesn't look right

- Algebra-still need some help -
**helper**, Thursday, February 3, 2011 at 9:43pmIs this a question?

**Answer this Question**

**Related Questions**

Algebra-I'm still stuck - The one-to-one function f is defined by f(x)=(4x-1)/(x...

Algebra- is my answer right - The one-to-one function f is defined by f(x)=(4x-1...

Algebra- is my answer right - The function g is defined by g(x)=3x^2+6. Find g(...

Algebra II - I need to write a polynomial in SIMPLEST FORM having roots 2,-2 and...

Algebra - Find the domain of the function. f(x)=(sqrt x+6)/(-2x-5) Write your ...

algebra - Hi Dear Jiskha team, I have Algebra homework and I will need some help...

Algebra - Here is what I got to do : write an inequality for my classmates to ...

physics - The engines of a 1.20 x 10^5 N rocket exert an upward thrust of 2.00 x...

Algebra - Domain - Find the domain of the function: 0=((y-4)/(8-sqrt(y)))

English - Posted by English on Sunday, February 27, 2011 at 7:26pm. 1. You can ...