# 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.

30 July 2012

kb, is this the equation you are trying to enter:

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).

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.

06 August 2012

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