What is the relation between the graph of a function and the graph of it's derivative?(adsbygoogle = window.adsbygoogle || []).push({});

Suppose that the function is x^2. It's derivative is 2x. If we graph both x^2 and 2x on the same coordinate axes, can we conclude anything about x^2 by looking at the graph of 2x, or vice versa (i.e. can we conclude anything about 2x by looking at the graph of x^2)?

For example, can we tell what will be the slope of the tangent line at a curve at x^2 by looking at the graph of it's derivative 2x?

If there is no relation between the two, then what is the use of graphing the derivative of a function?

**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!

# Relation of the graph of a function with the graph of it's derivative

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