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7 December, 14:49

Which is the inverse of the function f (x) = 4x - 9?

y = 4 (x + 9)

+4
Answers (1)
  1. 7 December, 15:04
    0
    The inverse is 1/4x + 9/4

    Step-by-step explanation:

    f (x) = 4x - 9

    y = 4x - 9

    Exchange x and y

    x = 4y - 9

    Solve for y

    Add x to each side

    x+9 = 4y

    Divide by 4

    1/4x + 9/4 = y

    The inverse is 1/4x + 9/4
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