find the rate of change of a function

can you help me to understand how to find the rate of change of this function y=(〖13x〗2-90).ln⁡(x). ?

Answers
The rate of change of a function is the derivative of that function (dy/dx). You will need to differentiate the function presented in your question. If you could provide a copy of your function in an easier-to-read format, I can help you.
tutorsynthetase
30 July 2012
kb, is this the equation you are trying to enter:
theo.cushion
31 July 2012
You will need to use the product rule. The product rule: for a function defined as the multiplication of two other functions, that is y = fg, dy/dx = f'g + fg'. Let f = (13x)^2-90 and g = ln(x).
tutorsynthetase
06 August 2012
You can use http://www.wolframalpha.com/ to check your answers. Always try it yourself, all the way through, before relying on your calculator or a computer first.
tutorsynthetase
06 August 2012