Problem Solving Skills for Mathcounts Competitions

Book Store => Bookstore => Twenty Files Questions => Topic started by: joe on August 16, 2010, 02:05:37 PM

Title: Intersection Points
Post by: joe on August 16, 2010, 02:05:37 PM

Hello Jane,

       I have a question in Chapter 12. When you say the maximum number of intersecting points by connecting these n points, what do you mean by intersection point? Could you give an example? Thanks.

Title: Re: Intersection Points
Post by: Jane Chen on August 16, 2010, 08:39:11 PM

Hello Joe,

Thank you for your post.

Intersection point means the point formed when two lines intersect each other.





       

Title: Re: Intersection Points
Post by: joe on August 17, 2010, 09:02:23 AM

I got it now.

Thanks.

Title: Intersection Points
Post by: Xylifrost on January 02, 2011, 08:09:15 AM

What algebraic method could I use to find the points of intersection of 2x2 - 3x  2 and the fifth root of x.

Title: Intersection Points
Post by: Xylifrost on January 09, 2011, 07:57:52 PM

Where did you get this problem?

Its part of a problem on integration. I have the whole question answered, I even know the two points of intersection from a graphical calculator but I cant find them algebraically.

Title: Intersection Points
Post by: Xylifrost on January 19, 2011, 09:46:57 PM

HUH?
What is 2x2 - 3x  22 ?

Where are you getting this from 2x2 - 3x  22? Its should be 2x2 - 3x  25