# Thread: graph, constant and improving...

1. ## graph, constant and improving...

2. Try plugging various values in for "c", graphing in your calculator or other software, and tracking what the changes are.

3. Originally Posted by User Name
hi all members, I cannot answer this question can anyone please help me and teach me by steps? Thanks!
An equation of the form Y=2[e^(x/2c)+e^((-x)/2c)] where c is a constant. So, for positive, how C affects the graph and equation?

Thanks again
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 $c$.