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need help with differentiation pls!!?? MATHS watch

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    so i know everything except for one little part of the question. if you would help me with this, it will be much appreciated.

    find the gradient function dy/dx of y=3x-9
    then find the gradient of the curve at the point x=2.

    i know that the differentiated gradient function is 3. however i cannot find the gradient when x=2 because there is no x to plot 2 in

    thanks in advance
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    (Original post by papajani1234)
    so i know everything except for one little part of the question. if you would help me with this, it will be much appreciated.

    find the gradient function dy/dx of y=3x-9
    then find the gradient of the curve at the point x=2.

    i know that the differentiated gradient function is 3. however i cannot find the gradient when x=2 because there is no x to plot 2 in

    thanks in advance
    If you post in the maths forum:
    http://www.thestudentroom.co.uk/forumdisplay.php?f=38 you are more likely to get a reply

    It may help to sketch the gradient function (y = 3). Then look at x =2 and look at what the y value is. Then conclude something about maps like y =5, x = 3 etc and their corresponding values.
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    (Original post by SeanFM)
    If you post in the maths forum:
    http://www.thestudentroom.co.uk/forumdisplay.php?f=38 you are more likely to get a reply

    It may help to sketch the gradient function (y = 3). Then look at x =2 and look at what the y value is. Then conclude something about maps like y =5, x = 3 etc and their corresponding values.


    Brill, thanks
 
 
 
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