
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
October 28th, 2012, 06:07 PM  #1 
Newbie Joined: Sep 2012 Posts: 3 Thanks: 0  Resistance as a function of Temperature
The resistance R in a certain wire depends linearly on the temperature T. It is found that R= 51 Ohms T=100'C and that R=54 Ohms when T=400'C. Find R as a function of T. I got R(T)=50+(T/100) I'm just not entirely confident this is the right answer. Also, it is asking to graph the function. I just get a straight line and it seems too easy of a question for my instructor. 
October 28th, 2012, 06:35 PM  #2  
Math Team Joined: Jul 2011 From: North America, 42nd parallel Posts: 3,372 Thanks: 233  Re: Resistance as a function of Temperature Quote:
You have two ordered pairs (100, 51) and (400, 54) so you can determine the straight line R = mT + b where m is the slope and b is the R intercept .....Oh yes, I see now, you did everything correct in my opinion.  

Tags 
function, resistance, temperature 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Temperature  ChristinaScience  Algebra  2  January 25th, 2014 12:23 PM 
Air resistance  arron1990  Physics  5  March 28th, 2012 05:52 AM 
Water temperature calculation  doughboy33  Elementary Math  7  August 7th, 2010 05:56 AM 
Air resistance  oswaler  Physics  1  March 19th, 2008 07:36 PM 
Resistance as a function of Temperature  dave daverson  Calculus  1  December 31st, 1969 04:00 PM 