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3 years ago

13

Which function is the reverse of f(x)=-5x-4

1 answer:

Elena L [17]3 years ago

8 0

$f(x)=-5x-4\\
y=-5x-4\\
5x=-y-4\\
x=-\dfrac{1}{5}y-\dfrac{4}{5}\\\\
f^{-1}(x)=-\dfrac{1}{5}x-\dfrac{4}{5}\\\\$

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