+0  
 
0
35
1
avatar+193 

What are the domain and range of the function?

Hev123  Apr 13, 2018
Sort: 

1+0 Answers

 #1
avatar+85757 
+1

Domain

x  cannot be any value < -5   because we would be taking the root of a negative number which isn't real

So....the domain  is   [-5, infinity )

 

The range is trickier

As small as the quantity under the radical can be is 0  [  when x  = -5 ]

So  1/2  * 0   =   0

And as x grows larger than -5, the function keeps increasing to infinity

So....the range is  [ 0, infinity )

 

The first answer is correct

 

 

cool cool cool

CPhill  Apr 13, 2018

12 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details