Jesse, to answer this, we need to see the graph. I'd help if I could! You can message me if you post it! :D
Answer:

Step-by-step explanation:
Exponential function
is
increasing if 
decreasing if 

Answer:
unlike terms
Step-by-step explanation:
since the first 9y is squared they cannot be combined since the other isn't squared, they cannot be simplified, nor are they alike
Answer:
Step-by-step explanation:
2,9,6, 2, 3
Answer:
No
Step-by-step explanation:
the graph fails the vertical line test