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Math Help - Trying to find the intercept of a pendulum graphing prac

  1. #1
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    Question Trying to find the intercept of a pendulum graphing prac

    I am using Open Office and have graphed both Time and Time squared to produce the graph. There might be a trick in Open Office Calc to give me the intercept but i havent found it .

    Can I get some help calculating the intercept of the two lines , or should I just estimate ? Trying to find the intercept of a pendulum graphing prac-intercept-help-please.jpg
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  2. #2
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    Re: Trying to find the intercept of a pendulum graphing prac

    Hey carlyn.

    What do you mean by the intercept? Is it the y-intercept or maybe the point of intersection (or something else)?
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  3. #3
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    Re: Trying to find the intercept of a pendulum graphing prac

    I was not sure but I think its the y - intercept of the one or both lines ? I think it involves a quadratic equation ? Thats how far behind I am

    if you could just help with the y-intercept and also tell me why you would want the y intercept. Thanks for responding, Carlyn.
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  4. #4
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    Re: Trying to find the intercept of a pendulum graphing prac

    For the y-intercept, just plug in x = 0 into your equation and you'll get the answer for that function.
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  5. #5
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    Re: Trying to find the intercept of a pendulum graphing prac

    can you see the equation made by open office calc f(x) = 0.242X + 0.0090 well it looks like that , well what is it ? Please ! Can you type it out in simple terms whats it for ? Looks like function of X = a number * X + another mystery number . I'm three weeks late starting school cause i was in hospital and I feel really left behind. I am going to do 48 hours of math over the weekend , or as much as I can handle
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  6. #6
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    Re: Trying to find the intercept of a pendulum graphing prac

    Yeah use each function and plug in x = 0 to get the y-intercept for that particular function.
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  7. #7
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    Re: Trying to find the intercept of a pendulum graphing prac

    do you mean the function i just typed above ? I dont even know if f is a variable or just a way to state function ?

    and isn't 0.242X going to be 0 ?
    Last edited by carlyn; February 19th 2013 at 09:01 PM.
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  8. #8
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    Re: Trying to find the intercept of a pendulum graphing prac

    f(x) is the function of x where f means function.
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  9. #9
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    Re: Trying to find the intercept of a pendulum graphing prac

    ok chiro, thanks, I think come Sunday night if i put in the effort over weekend (its Wednesday afternoon in Queensland Aust.) to catch up a lot of things will make sense that don't.
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