# Math

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Determine whether the function is one-to-one. If it is, find itd inverse.

f(x)= 3x+4 over 5

• Math -

For every x there is an f(x).
For every f(x) (which I'll call y) ther is an x.
y = (3x +4)/5
5y = 3x + 4
x = (5y -4)/3

The inverse function is
f^(-1)(x) = (5x-4)/3

Use the functions f(x)=1/8x-3 and
g(x)=x^3 to find the indicated value or function.

(g^-1 X f^-1)(-3)

• Math (Dan) -

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