
Math General Math Forum  For general math related discussion and news 
 LinkBack  Thread Tools  Display Modes 
November 28th, 2017, 03:10 PM  #1 
Member Joined: Oct 2017 From: Rumba Posts: 39 Thanks: 0  Question about my image dealing with domain
Z > R where f(x) = x^2 Domain is Z Codomain is R Image i'm not entirely sure about, I got {0,1,4,9...} Am i correct to say this? Last edited by greg1313; November 28th, 2017 at 04:35 PM. 
November 28th, 2017, 03:17 PM  #2 
Senior Member Joined: Sep 2015 From: USA Posts: 2,585 Thanks: 1430 
domain is $\mathbb{Z}$ codomain is $\mathbb{R}$ range is $\{0\}\cup \{n^2: ~ n\in \mathbb{N}\}$ 
November 28th, 2017, 03:27 PM  #3 
Member Joined: Oct 2017 From: Rumba Posts: 39 Thanks: 0  
November 28th, 2017, 03:32 PM  #4 
Senior Member Joined: Sep 2015 From: USA Posts: 2,585 Thanks: 1430 
the range is the image of the entire domain

November 28th, 2017, 03:41 PM  #5 
Member Joined: Oct 2017 From: Rumba Posts: 39 Thanks: 0  
November 28th, 2017, 04:30 PM  #6 
Senior Member Joined: Sep 2015 From: USA Posts: 2,585 Thanks: 1430  

Tags 
dealing, domain, image, question 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
How do I find the image set and domain?  alexpasty  Algebra  2  January 8th, 2014 05:51 AM 
Domain, image set and its rule  alexpasty  Algebra  2  April 24th, 2013 05:43 AM 
GRE question dealing with combinations..  rage  Advanced Statistics  2  July 17th, 2012 10:13 PM 
GRE question dealing with combinations..  rage  Number Theory  0  December 31st, 1969 04:00 PM 
Domain, image set and its rule  alexpasty  Calculus  1  December 31st, 1969 04:00 PM 