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5 December, 20:30

Where do they intersect on a graph f (x) = 4x-3 and f (x) = 9x-13

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  1. 5 December, 20:33
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    4x - 3 = 9x - 13

    -3 + 13 = 9x - 4x

    10 = 5x

    10/5 = x

    2 = x

    y = 4x - 3

    y = 4 (2) - 3

    y = 8 - 3

    y = 5

    they intersect at : (2,5)
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