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Math Help - Variables in Average Rate of Change?

  1. #1
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    Variables in Average Rate of Change?

    Please help me with this. I get stuck at the part:
    (5(x + h) - 4) - (5(x) - 4)/x + h - x

    What do I do after that? Do I continue with this?

    (5(x + h) - 4) - 5(x) + 4/h
    after..

    5x + 5h - 4 - 5(x) + 4/h

    5h/h

    Please help me I am utterly confused on how to solve this problem. Thank you so much in advanced

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  2. #2
    No one in Particular VonNemo19's Avatar
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    What you have done is correct. To make sure, what is the rate of change of y=5x-4? Its the slope! 5!!!!!!!
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  3. #3
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    Quote Originally Posted by nox16 View Post
    Please help me with this. I get stuck at the part:
    (5(x + h) - 4) - (5(x) - 4)/x + h - x

    What do I do after that? Do I continue with this?

    (5(x + h) - 4) - 5(x) + 4/h
    after..

    5x + 5h - 4 - 5(x) + 4/h

    5h/h
    Yes, I think you got the answer (5).
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  4. #4
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    Thank you so much for confirming me with that. The answer in the back is 5, but I wasn't not quite sure if the way I was doing is correct. Thanks for help me out guys!
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