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    This formula finds the area of a triangle, I could use it for Matrix triangle questions or Coordinate systems. :  \frac{1}{2}|(x_a - x_c)(y_b - y_a)-(x_a - x_b)(y_c - y_a)|

    Would I lose method marks?
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    Zacken


    Student403
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    I know precisely who you are and yet I'm still going to help:

    Yes, you're allowed to use that, it is a special case of a more general one (shoelace) and is commonly used.
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    (Original post by Zacken)
    I know precisely who you are and yet I'm still going to help:

    Yes, you're allowed to use that, it is a special case of a more general one (shoelace) and is commonly used.
    ?
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    (Original post by Zacken)
    I know precisely who you are and yet I'm still going to help:

    Yes, you're allowed to use that, it is a special case of a more general one (shoelace) and is commonly used.
    Thanks dude, I knew there was some good in you.

    But, are you sure? Especially using this for Matrices would defy the clear root that they intend for you to take.
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    (Original post by DylanJ43)
    Thanks dude, I knew there was some good in you.

    But, are you sure? Especially using this for Matrices would defy the clear root that they intend for you to take.
    You certainly can, an examiner who uses this site has been asked this a few times - I'll link you to her post about it once I'm on my computer and can search it up.
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    (Original post by Zacken)
    You certainly can, an examiner who uses this site has been asked this a few times - I'll link you to her post about it once I'm on my computer and can search it up.
    Thanks you beauty
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    (Original post by Student403)
    ?
    Your friendly neighbourhood super hero Duck
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    (Original post by Zacken)
    You certainly can, an examiner who uses this site has been asked this a few times - I'll link you to her post about it once I'm on my computer and can search it up.
    Are you on your computer yet
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    (Original post by DylanJ43)
    Are you on your computer yet
    No, I'm not home. I used this formula in my FP1 exam this year btw.
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    (Original post by Zacken)
    No, I'm not home. I used this formula in my FP1 exam this year btw.
    Yeah, but you got 91 ums...

    Do you know what lost you marks?
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    (Original post by DylanJ43)
    Yeah, but you got 91 ums...

    Do you know what lost you marks?
    Yeah, I copied the wrong thing when moving from one page to the other. Lost 4 marks which got me 91 UMS.
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    (Original post by Zacken)
    Yeah, I copied the wrong thing when moving from one page to the other. Lost 4 marks which got me 91 UMS.
    That's a fear, I always have when doing past papers :/

    Did you use the formula for question 8b?
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    (Original post by DylanJ43)
    That's a fear, I always have when doing past papers :/

    Did you use the formula for question 8b?
    Meh, I can't really be arsed. I finished early and couldn't be bothered checking. My UMS in FP1 is pretty much irrelevant.

    I did, yes.
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    (Original post by Zacken)
    Meh, I can't really be arsed. I finished early and couldn't be bothered checking. My UMS in FP1 is pretty much irrelevant.

    I did, yes.
    Did you use the coordinates of OBC directly? I'm getting 1/2 ar
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    (Original post by Zacken)
    Meh, I can't really be arsed. I finished early and couldn't be bothered checking. My UMS in FP1 is pretty much irrelevant.

    I did, yes.
    zainy
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    (Original post by DylanJ43)
    Are you on your computer yet
    Here you go. Tiny hobbit is an examiner, so that's sorted.
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    (Original post by Zacken)
    Here you go. Tiny hobbit is an examiner, so that's sorted.
    Thanks, but as for formula why am I getting 1/2 ar
 
 
 
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