The sun and the planets formed together 4,6 billion years ago from clouds of gas and dust called the solar nebula
You would draw a table like the above ^
And you would input each x value (1,2,3,0,-1,-2,-3) into the equation one by one for the value of both x and y
I did the first one for you so you understand how to do it.
It needs warm ocean water in a tropical area like the Gulf of Mexico.
Answer: Battle of Marathon. Battle of Thermopylae. Battle of Salamis. Battle of Artemisium. Battle of Plataea.
Explanation: I hope this is correct. Because I am pretty sure it is not just 3.