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Braggs
Mathematics
15 December, 16:45
Which is the inverse of the function f (x) = 4x-9
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Madyson Jenkins
15 December, 17:12
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To find the inverse of a function, switch the x and the y (the f (x) = y), then solve for y.
x = 4y - 9
x + 9 = 4y
y = (x+9) / 4
So f^-1 (x) = (x+9) / 4
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