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

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Basic differentiation question.

**Physics Forums | Science Articles, Homework Help, Discussion**