For which value of x is each rational expression not defined?

[Nub]

I don't get it...

For which value of x is each rational expression not defined?

a) 3/x

are you supposed to solve for x? or?

 

[HallsofIvy]

What if x= 0? Have you learned how to divide by 0?

 

[Robokapp]

Wherever either the denominator turns into something you can't divide by (a.k.a zero) or some other operation becomes impossible, like a zero in a log or negative in a square root etc. Basically wherever the graph doesn't have a y-value for the x-value. in a 3/x you REALLY can tell. if you never looked at a rational function and you're used with the linears, it comes as a shock...:)

 

[lo2]

Chuch Norris can divide by 0...Go ask him how to.

 

[HallsofIvy]

He can probably spell his own first name, too.

 

[lo2]

Yeah probably...

 

[Nub]

Yeah i know how to do it now. Thanks anyways guys. Ill keep your site under favourites so if there's anything I'll be sure to give you guys a click