# Difference Quotient Approximation Demo

This demonstration computes the difference quotient of a function.

You can change the following inputs in the demonstration.

• The function $$f(x)$$ can be entered in a box.
• The number $$a$$ can be entered in a box.
• The number $$h$$ can be selected from a list.
• 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.

• When you type something in an input box, the demonstration won't recompute until you hit Return on your keyboard.
• When you drag a slider back and forth, the demonstration won't recompute until you let go of the mouse button.
• There may be a few second delay when the demonstration recomputes, depending on the speed of your internet connection.

Ethan Bloch
Professor of Mathematics
Bard College

Office Hours:

• Monday: 4:00-5:30
• Wednesday: 2:00-3:30
• Thursday: 10:30-12:00
• Or by appointment