Anti-derivative

Looks like a fancy word, but it just means: Use the Derivative function describe the Original function.

Notice that: There might be multiple possible anti-derivatives.

The graphical relationship between a function & its derivative

Refer to Khan academy: The graphical relationship between a function & its derivative (Part 1)

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How to draw the function's Anti-derivative

Refer to Khan academy: The graphical relationship between a function & its derivative (part 2)

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Example

Refer to Khan academy.