Connect the dots meaning to make sense of something that happened, or link the details. you can’t link the details that haven’t happened... but you can after they do.
Answer: bababoey
Explanation: just... bababoey
The answer would be "to help you decipher symbols and scale."
Without the key, a lot of the symbols would be quite confusing and you wouldn't know if it was 5 miles or 500 miles. Everything else is implied throughout the map, but the key's purpose is definitely to help you decipher symbols and scale.
