+0  
 
0
44
1
avatar

If f(x) is a function whose domain is [-1, 9] and g(x) = f(x^2), then the domain of g(x) is an interval of what width?

 

I think the answer is 81, but its wrong. 

Guest Apr 26, 2018
 #1
avatar+87333 
+1

g(x)  = f(x^2)

 

g(-1)  = f( [-1]^2)  =  f(1)

 

And

 

g(9)  = f(9^2)  = f(81)

 

The interval  is  [ 81   - 1 ]   =   80 units wide

 

 

cool cool cool

CPhill  Apr 26, 2018

12 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.