Answer:
4 over 5
Step-by-step explanation:
its 4 over 5 because your going to get a decimal and the other answers you will get a integer which the question isnt asking for so the answer is 4 over 5
A binomial squared is written like

So, we have 
So, we want to complete the square 
We can add and subtract 9 to write

Rate of change refers to moving a certain amount of distance over a certain time period
rate of change= velocity in this case.