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Stuck on a maths question..

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  • 01-05-2014 11:06am
    #1
    onethreefive
    Closed Accounts Posts: 3,799 ✭✭✭


    Please can someone help me with this question!

    I'm currently doing the SEC Set C sample paper 2 and I am stuck on Q3 part (c).

    It's really annoying me :mad: Roll on the days I never have to do maths like this again


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    #2
    aleatorio
    Registered Users Posts: 1,673 ✭✭✭aleatorio


    From part (ii) you should have gotten the equation [latex] 4x + 3y - 25k + 5 = 0 [/latex]
    So to find the value of [latex] k [/latex] you just have to sub the point [latex] (3,11) [/latex] into the equation and solve :)


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    #3
    onethreefive
    Closed Accounts Posts: 3,799 ✭✭✭onethreefive


    Sorry I forgot to say it is OL


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    #4
    krekshi
    Registered Users Posts: 3 ✭krekshi


    If its the question asking to show that ABCD is parallelogram
    You can answer it in two ways you should have mentioned in (b)

    1st way is to show that two opposite side of the quadrelateral are parallel by showing they have equal slopes

    2nd way is to show that midpoint of AC is equal to midpoint of BD therefore the diagonals bisect each other and it is a paralello gram

    if its not that question please link me the paper or tell me where i can get it and I will answer it for you


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