Answer:
The circle should be open and the arrow should go the other way.
Answer: (a) Yes. The table is a function.
<u>Step-by-step explanation:</u>
In order to be a function, there cannot be any duplicate x-values.
In the given table, each x-value is different so this IS a function.
Answer:
Final answer iis choice B) 
Step-by-step explanation:


Compare with quadratic equation
, we get:
a=2, b=3, c=8
Now plug these values into quadratic formula:




Hence final answer iis choice B) 