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neonofarm [45]
3 years ago
6

Let f(x) = 7x - 13. Find f-1(x).

Mathematics
1 answer:
nika2105 [10]3 years ago
4 0
f(x)=7x-13 \\ \\ y=7x-13 \ \ \ |+13 \\
y+13=7x \ \ \ |\div 7 \\
x=\frac{1}{7}y+\frac{13}{7} \\ \\
\boxed{f^{-1}(x)=\frac{1}{7}x+\frac{13}{7}}
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