
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
June 3rd, 2013, 05:22 AM  #1 
Senior Member Joined: Sep 2011 Posts: 395 Thanks: 0  Circle Intersecting Axis
Based on the yintercepts I've found, adding them together would yield the correct answer, but this is not the difference between the values and, hence, not the length of the intercept. Can anyone help? Many thanks. Q. K is the circle . Find the length of the intercept the circle cuts off the yaxis. Attempt: Let Apply quadratic equation: +/\sqrt{(^24(1)(5)}}{2(1)}=\frac{8+/\sqrt{64+20}}{2}=\frac{8+/\sqrt{84}}{2}=4+/\sqrt{21}" /> Difference between y intercepts = length of intercept: Ans. (From text book): 8 
June 3rd, 2013, 06:12 AM  #2 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,167 Thanks: 472 Math Focus: Calculus/ODEs  Re: Circle Intersecting Axis
I agree with your interpretation and result.

June 3rd, 2013, 06:22 AM  #3 
Senior Member Joined: Sep 2011 Posts: 395 Thanks: 0  Re: Circle Intersecting Axis
Great! Thank you very much.


Tags 
axis, circle, intersecting 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Area of a Selfintersecting Polygon  Rajan90  Algebra  1  April 2nd, 2012 05:47 AM 
Two Intersecting Circles  Morris  Algebra  4  November 5th, 2010 03:24 PM 
Three intersecting circles  mydisguise08  Algebra  4  December 31st, 2009 02:22 PM 
Find intersection of a Circle with Yaxis...  horees  Algebra  2  December 18th, 2009 12:51 PM 
intersecting?  cleeezzz  Algebra  1  February 1st, 2008 05:45 AM 