Thread: Gradient Question

If z=2t^3 - 5t

what is the gradient of a graph of z against t at t = 3?

The answerneeds to be a number not in scientific notation

Gradient = ???

Thanks

Originally Posted by stanton13

If z=2t^3 - 5t

what is the gradient of a graph of z against t at t = 3?

The answerneeds to be a number not in scientific notation

Gradient = ???

Thanks

A cubic curve will have a range of gradients. To find the gradient at a specific point, find the derivative and insert the value at which you want to find the gradient (In this case when ).

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Inserting into the derivative will give you the gradient at that point.