
PreCalculus PreCalculus Math Forum 
 LinkBack  Thread Tools  Display Modes 
November 21st, 2014, 07:35 AM  #1 
Member Joined: Jun 2014 From: Math Forum Posts: 67 Thanks: 4  x axis and y axis Product of slopes is equal to 1 How can we prove that x axis and y axis Product of slopes is equal to 1

November 21st, 2014, 09:00 AM  #2 
Math Team Joined: Dec 2013 From: Colombia Posts: 6,445 Thanks: 2117 Math Focus: Mainly analysis and algebra 
It doesn't, but you can show that the limit is 1.

November 21st, 2014, 02:46 PM  #3 
Math Team Joined: Apr 2010 Posts: 2,770 Thanks: 356 
Similarily, two lines of the form ax that have the line y = x as symmetryaxis have a product of slopes equal to 1. What about the xand y axis?

November 26th, 2014, 07:31 PM  #4 
Math Team Joined: Nov 2014 From: Australia Posts: 672 Thanks: 239  
November 27th, 2014, 05:16 AM  #5 
Math Team Joined: Apr 2010 Posts: 2,770 Thanks: 356 
Indeed, but to find the product of 1, isn't used that two perpendicular lines have product of slopes 1? I figured to use a similar argument.


Tags 
axis, equal, product, slopes 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
volume xaxis vs yaxis  thesheepdog  Calculus  2  November 10th, 2014 12:23 PM 
Axis of Symmetry  chrie  Elementary Math  3  May 22nd, 2014 03:01 AM 
f(x) reflects f(x) in the x axis  rhubarb123  Algebra  2  May 15th, 2014 01:29 PM 
rotation between 2 axis'  DeadBeef  Geometry  3  May 3rd, 2014 06:10 AM 
axis of revolution  spellbinder  Calculus  1  June 2nd, 2011 11:22 PM 