3 years ago

What's the inverse of f(x)=3x^2+6?

1 answer:

5 0

Switch where the x and y are, then solve for y. f(x) = y.

x = 3y^2 + 6

x-6 = 3y^2

(x-6)/3 = y^2

f^-1(x) = y = sqrt((x-6)/3)

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