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Derivative - Digital Assessment

First click the button 'Next' to generate a new function.

The black graph is given by the function:
f(x) = a·x3 + b·x3 c·x3 + d

a, b, c and d are integers in the interval [-5,5].


Is the red graph representing the derivative of f(x)?
Answer yes or no.
The click the button 'Confirm' to see if you are right or wrong.
If you are wrong, then you will see the right expression of f(x) and f'(x).
In addition you will also see the graph (green) of the right derivative


If you need a bit help before you answer, mark the checkbox 'Show Tangent'
to draw the tangent (blue) to the graph of f(x) at a point P.
You can move the point P along the graph to see if this can help you before answering.







Link to programming code.

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