Answer:
Step-by-step explanation:
Remark
The hyperbola opens to the left. That means that if you take ruler and apply it so it sits vertically in the middle of the hyperbola and draw a straight line, the line will go through 2 points.
What that means is that there is 1 x value and 2 y values - one above the x axis and one below.
Answer
This is NOT a function
