#1**+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**+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

CPhill
Mar 21, 2018