I just need help turning a function of x into a function of y.(adsbygoogle = window.adsbygoogle || []).push({});

I'll give you an example and maybe you can explain it and expand upon the idea.

Thanks in advance.

y = x^2 -5x (see a very simple function! I just can't figure out how to convert it).

or y = x^2 - 2x

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# Simple question on functions.

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