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    Given that y is inversely proportional to x and that y=50 when x=2

    find an expression for y in terms of x
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    (Original post by katie.daviesx)
    Given that y is inversely proportional to x and that y=50 when x=2

    find an expression for y in terms of x


    If y is inversely proportional to x then


    y α k(1/x)
    y = k(1/x)
    y = k/x

    Spoiler:
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    Sub in y and x to find k

    y = k/x
    50 = k/2
    k = 100

    Therefore y = 100/x




 
 
 
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