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 Calculus Calculus Math Forum

 January 8th, 2014, 11:20 PM #1 Senior Member   Joined: Sep 2013 From: Earth Posts: 827 Thanks: 36 Gradient function A curve with gradient function 4x-(4/(x^2)) has a turning point at (h,12). Find the value of h Find the equation of the curve January 9th, 2014, 12:10 AM #2 Senior Member   Joined: Dec 2012 Posts: 372 Thanks: 2 Re: Gradient function . Solving the above two equations simultaneously reveals all remaining info about your curve (namely the value of ). January 9th, 2014, 05:07 AM #3 Senior Member   Joined: Sep 2013 From: Earth Posts: 827 Thanks: 36 Re: Gradient function How to solve the simultaneous equation? January 9th, 2014, 06:23 AM #4 Senior Member   Joined: Dec 2012 Posts: 372 Thanks: 2 Re: Gradient function Equation (2) has only one possible real solution which is . Plug this value into equation (1) and then solve for . January 9th, 2014, 06:29 AM #5 Senior Member   Joined: Sep 2013 From: Earth Posts: 827 Thanks: 36 Re: Gradient function Can you do the step-by step for solving the equation 2? I haven't learn to solve the equation which has a power to -2. January 9th, 2014, 10:55 AM #6 Senior Member   Joined: Dec 2012 Posts: 372 Thanks: 2 Re: Gradient function . On the first implication, I just multiplied through by to clear the negative power, which is what you should always think about doing first in polynomial equations with negative powers. Observe that (why?) Tags function, gradient Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post jiasyuen Calculus 1 January 9th, 2014 12:51 PM jiasyuen Calculus 3 January 9th, 2014 02:27 AM BenR Calculus 0 December 12th, 2012 01:33 AM Wooseok Nam Applied Math 0 May 20th, 2010 12:44 AM Mediocre1981 Calculus 3 August 29th, 2008 03:01 AM

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