+0  
 
0
43
2
avatar+2256 

Help 3

NotSoSmart  Mar 21, 2018
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2+0 Answers

 #1
avatar+804 
+1

The 1st one would be the answer. 

The reason I chose the 1st one instead of the 2nd one is b/c if you see the Domain, it goes all across on both sides and covers each value. As for the range, it doesn't. 

Julius  Mar 21, 2018
 #2
avatar+85858 
+1

This is a hyperbola that intercepts the y axis

 

Here's the graph, NSS

 

https://www.desmos.com/calculator/bmuwoataoe

 

The center  is  (0,0)

 

Putting this into standard form by dividing both sides by 84  we have

 

y^2            x^2

___    -    _____     =     1

  7              28

 

The domain is all real numbers because the graph  extends to infinity in both directions along the x axis

The  range  is   y ≤ - √7   and  y  ≥ √7

 

The first answer is correct

 

 

cool cool cool

CPhill  Mar 21, 2018

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