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LiRa [457]
3 years ago
6

Find the inverse of f(x)=5x-2

Mathematics
1 answer:
kompoz [17]3 years ago
5 0

Answer:

f^{-1}(x) = \frac{x+2}{5}

Step-by-step explanation:

Let y = f(x) and rearrange making x the subject

y = 5x - 2 ( add 2 to both sides )

y + 2 = 5x ( divide both sides by 5 )

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

Change y back into terms of x

f^{-1} (x) = \frac{x+2}{5}

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