FOIL unearthed
- Author:
- Jóhann Örn Sigurjónsson
The Unit Square
Above you can see a square called "The Unit Square". It means it has base of length 1 and a height of 1 as well. In the following exercises, you will explore the unit square by dragging the purple and pink sliders and recording your observations.
Drag the purple slider around. Note how the values of a and b change. What does equal?
Try dragging the pink slider around to make .
Now, make
Look at the values of m, n, o and l.
Define in your own words what represents.
Which of these expressions describe the value of m?
Write an equation that defines
Drag the sliders around some more. What does equal?
What does equal?
Then what does equal?