Secant Line Approximation Demo
This demonstration plots secant and tangent lines of a function, and computes the difference quotient.
You can change the following inputs in the demonstration.
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The function \(f(x)\) can be entered in a box.
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The number \(a\) can be entered in a box.
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The interval in the \(x\)-axis on which the function is plotted can be changed by sliders.
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The interval in the \(y\)-axis which is visible can be changed by sliders.
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The number \(h\) can be selected from a list.
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The choice of \(h\) being positive or negative can be selected from a list.
Using this Demo
To start the demonstration, click on the button "Launch the Demonstration Now."
To change the inputs in the demonstration, note the following.
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When you type something in an input box, the demonstration won't recompute until you hit Return on your keyboard.
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When you drag a slider back and forth, the demonstration won't recompute until you let go of the mouse button.
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There may be a few second delay when the demonstration recomputes, depending on the speed of your internet connection.
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