Thread: Range and Domain

I need a little help here-not sure if I got it right:
f(x)= 2/x+1, g(x)= x/x+1
domain of f is {x is part of a set where x >0} and domain of g is {x is part of a set where x is greater than or equal to 0} [0, infinity)U(0,infinity).

OK

Both of the functions are rational functions... in other words, of the form

, where and are continuous functions of .

is also continuous at all points except where the denominator .

So where does the denominator equal 0? In both cases, where .

So the domain of each function is .

The first one...

Sorry for the double post, didn't realise I edited the first one instead of adding a new one.


OK

Both of the functions are rational functions... in other words, of the form

, where and are continuous functions of .

is also continuous at all points except where the denominator .

So where does the denominator equal 0? In both cases, where .

So the domain of each function is .

wow..so i wasn't even close, huh?

Originally Posted by Vivianp

wow..so i wasn't even close, huh?

No, but that's ok, that's what we're here for.

Just always have in the back of your mind "You can't divide by 0" and you'll be fine