Algebra-still need some help
posted by Jena on .
Homework Help Forum: Algebra
Posted by Jena on Thursday, February 3, 2011 at 7:32pm.
Find the domain of the function.
Write your answer as an interval or union of intervals.
Algebra - David, Thursday, February 3, 2011 at 7:42pm
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
For 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
(-inf,-5/2)U[-6,infin) but it doesn't look right
Is this a question?