Answer:
Step-by-step explanation:
Given
The given equation is 
There are two functions i.e. 
Their intersection gives the solution of the above function
From the graph, we can see that both the graph intersects at two different points i.e. at

Answer:
-9
Step-by-step explanation:
Answer: (0, -6)
Step-by-step explanation:
The center is the midpoint of the diameter, meaning that the coordinates of Y must be (0, -6).