Sketch the graph of y=e^{-x }and y=lnx <No problem.>

Let f(x)=e^{-x}- ln x and use the intermediate value theorem to show that f(x)=0 for the interval n<x<n+1 where n and n+1 are consecutive integers to be determined. If f(x_{0})=0,give a reason why would you expect the value of x to be less than 1.5 and verify that this is indeed true.

Thanks for help!