Sketch Curve: Help Solve y=0 | Stephen

[StephenP91]

http://img215.imageshack.us/img215/1555/question10.png

I have done 10)a), but b), I just can't figure it out. I am trying to find at what points y=0, but I just can't do it.

I hope someone can help me.

Thank you,
Stephen.

 

[Delphi51]

You've asked in the introductory physics forum rather than the math one, so you must expect to get a practical answer rather than a nice mathematical one! I suggest you type it into the grapher at
http://www.walterzorn.com/grapher/grapher_e.htm
and it will show you where the zero is.

 

[StephenP91]

Turns out. I didn't need it. After I figured out the co-ords of the two stationary points and what happens when X gets inf and -inf then I could see what the roots were and according two the graphics I drew it's about 3.14 so I am pretty sure I didn't have to factorise that damned equation.