what exactly does Δy/Δx mean.(adsbygoogle = window.adsbygoogle || []).push({});

for instance i know that when

y=x^{2}

Δy/Δx=2x

but what does Δx/Δy equal?

also why is the derivative always Δx/Δy?

also what does Δx by itself mean for instance if y=x^{2}what is Δx

i appreciate any and all answers thanks

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# Basic differentiation question.

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