What is the answer to f^{-1}(9)=4,f(4) ?

The answer to f^{-1}(9)=4,f(4) is f= 9/4

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f^{-1}(9)=4,f(4)

f^{- 1} (9) = 4, f (4)

f = \frac{9}{4}

Decimal Notation

f = 2.25

Solution steps

f^{- 1} (9) = 4

Refine

\frac{9}{f} = 4

Multiply both sides by

f

9 = 4 f

Switch sides

4 f = 9

Divide both sides by

4

f = \frac{9}{4}

Verify Solutions

Find undefined (singularity) points:

f = 0

Combine undefined points with solutions:

f = \frac{9}{4}

\frac{1}{1.5 y} = 0.25

x, \frac{x}{x} = 3 k

e^{- 1} = - e^{1}

\frac{3 x + 5}{x + 8} = \frac{8}{5}

\frac{5}{10} = \frac{8}{8 x}

What is the answer to f^{-1}(9)=4,f(4) ?
The answer to f^{-1}(9)=4,f(4) is f= 9/4
Solve for f: f^{-1}(9)=4,f(4)
The solution is f= 9/4