Find interval

Question

Find interval

anonymous · Answer

$$f(x)=-\frac{ x^2-x-12 }{ x+3 }$$

anonymous · Answer

i did the factoring and cancel out (x+3)

terenzreignz · Answer

Once again, we find ourselves with a rational function... which will be discontinuous only when the denominator is zero...
bueno (LOL)
When is the denominator equal to zero?

terenzreignz · Answer

It does not matter if the denominator can be cancelled out.

terenzreignz · Answer

What exactly is the question?

anonymous · Answer

The P.D. is -3
Question: Find the intervals on which each function is continuos

anonymous · Answer

my interval was (-infinity,-3),(-3,infinity)

terenzreignz · Answer

Well done.

terenzreignz · Answer

Although, in this case, it's what's called a removable point of discontinuity... you'll probably tackle that sometime soon... how old are you anyway? :D

anonymous · Answer

i just turned 18 today the 24th of April lol. I'm only in Algebra 2 though, i slacked too much when i should have

terenzreignz · Answer

Ohh... happy birthday :D
LOL

anonymous · Answer

shouldn't*

terenzreignz · Answer

This looks more like a Calculus question to me :/

anonymous · Answer

yea this small section is not in the book but our teacher wants to teach us that

terenzreignz · Answer

I see.  Well, you seem to have gotten the hang of it :)

anonymous · Answer

Alright, thanks again lol, i'm probably going to put another question but they are all basically the same i think