Applets

Sine and Cosine Applet

Derivative and Slope

Polar and Rectangular Coordinate

Exploration Instructions:

• Deselect "show polar coordinates" and make sure "show rectangular coordinates" is selected.
• How was the rectangular coordinate found? (hint: think about what x and y do in the graph)
• Deslect "show rectangular coordinates" and select "show polar coordinates."
• How are the polar coordinates found? (hint: think about what r and theta mean in terms of polar graphs)
• Select "show rectangular coordinates" so now you have both of them selected.
• What is one connection between the two types of coordinates?