# graph, constant and improving...

• May 7th 2009, 05:53 AM
User Name
graph, constant and improving...
• May 7th 2009, 05:56 AM
stapel
Try plugging various values in for "c", graphing in your calculator or other software, and tracking what the changes are. (Wink)
• May 7th 2009, 05:57 AM
mr fantastic
Quote:

Originally Posted by User Name
Define $f(x) = 2 [e^{x/2} + e^{-x/2}]$.
Then your function is $f\left(\frac{x}{c}\right)$ and so the effect of positive $c$ is to dilate in the horizontal direction by a factor of $c$.