Posted by luke on Thursday, November 13, 2008 at 4:56pm.
consider the following function:
f(x)=sqrt(50x)
find the linear approximation of f(x) at a=1

calculus  drwls, Thursday, November 13, 2008 at 5:10pm
Don't you mean at (and near) x=1?
You never define what "a" is and it does not appear in f(x)