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18 September, 07:27

Standard form of (2,-4) slope : - 1

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  1. 18 September, 07:44
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    Y = mx + b

    slope (m) = - 1

    (2,-4) ... x = 2 and y = - 4

    now we sub and find b, the y int

    -4 = - 1 (2) + b

    -4 = - 2 + b

    -4 + 2 = b

    -2 = b

    y = - x - 2

    x + y = - 2 < = = standard form
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