What is the answer to f^{-1}(2)=5,f(5) ?

The answer to f^{-1}(2)=5,f(5) is f= 2/5

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f^{-1}(2)=5,f(5)

f^{- 1} (2) = 5, f (5)

f = \frac{2}{5}

Decimal Notation

f = 0.4

Solution steps

f^{- 1} (2) = 5

Refine

\frac{2}{f} = 5

Multiply both sides by

f

2 = 5 f

Switch sides

5 f = 2

Divide both sides by

5

f = \frac{2}{5}

Verify Solutions

Find undefined (singularity) points:

f = 0

Combine undefined points with solutions:

f = \frac{2}{5}

\frac{6 r ^{2} - 19 r - 7}{2 r - 7} = 4 r - 3

\frac{2}{x + 5} = \frac{5}{x + 4}

\frac{12 ( 2200 )}{2200 + x} = 1.96

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

\frac{16}{y + 7} = \frac{4}{3}

What is the answer to f^{-1}(2)=5,f(5) ?
The answer to f^{-1}(2)=5,f(5) is f= 2/5
Solve for f: f^{-1}(2)=5,f(5)
The solution is f= 2/5