graph, constant and improving...

http://i39.tinypic.com/28ilpcp.png

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

Quote:

Originally Posted by User Name

hi all members(Hi), I cannot answer this question (Doh)can anyone please help me and teach me by steps?(Wondering) 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(Talking)

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 $c$ .