D f z d z. The derivative and tangent line mathlet allows you to enter any function you can construct into it and look at the graph of its values and its slopes that is its derivative on any interval you choose. Solve 3x 1 0 3x -1.
Slope f x h f x h.
So at point a or x 0 value of y -1 and at point b or x 2 value of y 3. Slope f x h f x h. It is found by taking the derivative of the function and evaluating the function at the point in question. A quadratic function of the form fx ax2bxc is determined by three points.