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If f: Q to Q is defined by f(x) = 5x+4, ...

If `f: Q to Q` is defined by `f(x) = 5x+4`, find `f^(-1)`.

Answer

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Knowledge Check

  • If f: R to R is defined by f(x) = 2x+|x| , then f(3x) -f(-x)-4x=

    A
    `f(x)`
    B
    `f(1)`
    C
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    D
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  • If f : R to R is defined by f(x) = x^(2)- 6x + 4 then , f(3x + 4) =

    A
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    B
    `9x^(2)+ 6x - 4`
    C
    `2x+2`
    D
    `x^(2) + 6x + 9`

  • If f: R to R is defined by f(x)=7+ cos(5x+3) " for " x in R , then the period of f is

    A
    `2pi`
    B
    `pi`
    C
    `(pi)/5`
    D
    `(2pi)/5`

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