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4 June, 17:10

F (x) = - 9x+4

h (x) = - 4/5x+8/5

State if the given functions are inverses.

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  1. 4 June, 17:15
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    F (x) = - 9x + 4

    y = - 9x + 4

    x = - 9y + 4

    x + 4 = - 9y

    -x/9 - 4/9 = y

    h (x) = - 4/5x + 1 3/5

    y = - 4/5x + 1 3/5

    x = - 4/5y + 1 3/5

    x - 1 3/5 = - 4/5y

    -1 1/4x + 2 = y
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