 |
|
 Set up the equation in the
example below and then change the value of n by dragging
the slider knob. Play the animation, too.
|
|
What does the n do to the curve? What if n is
positive? Which way does the curve move? What if n is negative?
If you had difficulty graphing the function, here is an example
of what it looks like in NuCalc. You will need to configure NuCalc Web Helper
as a helper
application in your brower first.
|
Now we'll look at a different situation.
|
Set up the window as before, but this time, instead
of
 |
Answer the same questions: What does the n do? And again,
what if n is positive? What if it's negative?
|
Let's try another function and see if we can slide it back and forth.
Try these expressions:
|
Again, see what happens when n is positive and negative.
How would you change the function to make it slide up and down?
|
|
- What's the rule for making a function slide up and down?
- What's the rule for making a function slide back and forth?
|
|
What if there is more than one x
in an expression? Try it. First graph
|
|
Then see if you can slide it back and forth. Try
these expressions:
|
The
lessons should be:
 To make a curve slide to the right, subtract the distance
you want it to slide from every x in the expression.
To make a curve slide up, add the distance you want to slide
it to the entire expression.
|
|
© 1996 Key Curriculum Press
|
The Math Forum is a research and educational enterprise of the Goodwin College of Professional Studies.