
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
March 8th, 2015, 03:11 PM  #1 
Newbie Joined: Mar 2015 From: United States Posts: 2 Thanks: 0  Finding the Range of an Equation
Hello! I just need help with one problem. I have to find the range of the equation sqrt(x10). Is there an easy way to find the range with just the equation?

March 8th, 2015, 03:35 PM  #2 
Global Moderator Joined: May 2007 Posts: 6,807 Thanks: 717 
sqrt(x10) is not an equation (no equals sign). As an expression, you need to specify whether you are talking about real or complex functions. If real, the domain is x > 10. If complex, anything. To get the range for real, it is customary to define it to be all positive numbers, although all real numbers are in the range, since it is doublevalued. Last edited by skipjack; March 8th, 2015 at 07:39 PM. 
March 8th, 2015, 07:36 PM  #3 
Global Moderator Joined: Dec 2006 Posts: 20,931 Thanks: 2206 
The range is the nonnegative reals, i.e., [0, ∞).

March 8th, 2015, 08:00 PM  #4 
Banned Camp Joined: Jun 2014 From: Earth Posts: 945 Thanks: 191  

Tags 
equation, finding, range 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Finding the range of function  sachinrajsharma  Calculus  1  April 2nd, 2013 07:09 PM 
Finding domain and range  Eraser147  Algebra  1  October 4th, 2012 12:37 PM 
Number theory and finding the domain and range!  chocolate  Algebra  2  April 12th, 2012 08:41 PM 
Finding domain & range of arctrig functions (No Calculator)  jaredbeach  Algebra  4  November 18th, 2011 01:20 PM 
Finding Range   Math Illiterate  Algebra  1  September 29th, 2011 02:41 PM 