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    Trouble with The Line ThatGuy

    Hello, I am revising for my line test in a few days and have stumbled upon this question. 2014 Paper 1 Sec. A Question 8

    https://studyclix.ie/Subjects/Leaving-Certificate/Higher/Mathematics/Co_dash_Ordinate-Geometry,-The-Line

    Can anyone explain to me what is happening there?

    I have looked at the marking scheme and am confused.

    Thanks

    1. avatar image

      Brian-96

      have you done calculus yet ? it is needed for this question

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      Me

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