# sketch a graph question

Printable View

• October 14th 2012, 10:28 AM
narjsingh
sketch a graph question
Sketch a graph for a function f in each of the following cases
f'(x) and f''(x)>0

i dont get this question because i dont know what f is. by that i mean if f was an equation i think i would know what to do but it just says sketch f, what is f?
thanks!
• October 14th 2012, 10:33 AM
MaxJasper
Re: sketch a graph question
f(x)=1/x
• October 14th 2012, 11:01 AM
Plato
Re: sketch a graph question
Quote:

Originally Posted by narjsingh
Sketch a graph for a function f in each of the following cases
f'(x) and f''(x)>0

Draw any function which is increasing and concave up.
$e^x$ will work.
• October 14th 2012, 11:03 AM
Plato
Re: sketch a graph question
Quote:

Originally Posted by MaxJasper
f(x)=1/x

That function has no first nor second derivative at $x=0.$