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Popular >

inverse of f(x)=4(7)^x

Solution

inverse

f (x) = 4 (7)^{x}

Solution

\frac{ln ( \frac{x}{4} )}{ln ( 7 )}

Solution steps

y = 4 \cdot 7^{x}

Replace

x

with

y

x = 4 \cdot 7^{y}

Solve for

y, x = 4 7^{y}

\frac{ln ( \frac{x}{4} )}{ln ( 7 )}

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Frequently Asked Questions (FAQ)

What is the inverse of f(x)=4(7)^x ?
The inverse of f(x)=4(7)^x is (ln(x/4))/(ln(7))