Hey what does the little circle mean in between a problem? I can't find that symbol anywhere! Please help!

Question

anonymous · Answer

It means multiply

anonymous · Answer

(f * g)(x), but it's a circle, not a star

anonymous · Answer

Yea thats what I thought but I didnt excatly know what she was talking about

anonymous · Answer

an actual circle

anonymous · Answer

Oh okay never mind

anonymous · Answer

Hmmm well lets see.....

anonymous · Answer

is it a circle or a period in the middle

anonymous · Answer

Stupid pre-calc!

anonymous · Answer

Im not a big fan of math either.......

anonymous · Answer

circle
just like the star, but a damn circle for some reason! lol

anonymous · Answer

Hmm....... I gotta think about this..... Lol

anonymous · Answer

Im assuming its multiplacation but Idk........ Because a multiplacation symbol has several ways to do it...... That looks like one of them

anonymous · Answer

Im not for sure...

anonymous · Answer

But, sometimes the dot=multiply

anonymous · Answer

Yea

anonymous · Answer

No. It means f composed of g.

anonymous · Answer

$(f\circ g)(x) = f(g(x))$

anonymous · Answer

Ohh okay that makes sence now

anonymous · Answer

Crap! ok. thanks........somebody shoot me now.

anonymous · Answer

So for example:

$$f(a) = a^2$$
$$g(x) = x+3$$
$$(f\circ g)(x) = f(g(x)) = (x+3)^2$$

anonymous · Answer

Thats exactly how I feel -_- 5 more math pages to do...

anonymous · Answer

Me too , -_-

anonymous · Answer

Its all review from way long ago I dont remember a dang thing!