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21 March, 16:32

Find the equation of a line passing through (-2,4) and (0,8)

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  1. 21 March, 16:35
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    Eqn of line: y = mx + c

    where m is the gradient and c is the y intercept

    gradient = (8-4) / (0 - (-2)) = 4/2 = 2

    thus y = 2x + c

    sub (0,8) into this eqn

    8 = 2 (0) + c

    c = 8

    eqn of line: y = 2x + 8
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