Which function has a derivative this is equal to 5 when x = 2? 


a) g(x) = x^3-1 

b) h(x) = \(1 \over x+1\)

c) f(x) =x^2+1 

d) f(x) = 5x-3 


I don't know if it's the wording, but I'm really confused on this. I found the derivative of each one at x =2 and none gives me 5. 

Julius  Mar 8, 2018

I agree, Julius......none  = 5   when  x  = 2


If the third one were  x^2  +  x.....it would work.....



coolcool cool

CPhill  Mar 8, 2018

Ohhh I get it. It's d. Because the derivative of that is f'(x) = 5 so whatever value of x will always give us 5. Thanks for helping me through that :) 

Julius  Mar 8, 2018

5 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.