Me you measured 6 cups of water and 5 cups of lemon juice to make how many in total quarts of lemonade

Total cups of lemonade:

6 cups + 5 cups = 11 cups

Total quarts and cups of lemonade:

11 cups ÷ 4 cups = 2 quarts 3 cups

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

from the sentence, "tomorrow morning, akiko will arrive an hour late" depicts a third person perspective because it doesn't use any pronoun to replace akiko, the subject of the sentence, and it is in singular form since akiko is only one person.