Math

Find the inverse of the function.

f(x) = -0.25x + 6

I am having trouble when there is a decimal to solve like -0.25x

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  1. You could just convert the decimal to a fraction
    and -.25 = -1/4 ( if you have $ 0.25, you have 25 cents which we call "a quarter" )
    y = -.25x + 6 -----> y = (-1/4)x + 6

    step1 of finding inverse: interchange the x's and y's
    ----> x = (-1/4)y + 6
    step2: solve this inverse equation for y
    4x = -y + 24
    y = -4x + 24

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  2. Thank you so much!!

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