10 points! find the domain and range.

Aformual for 8 bottles of window cleaner calls for 6 cups of rubbing to customers alcohol 2 1/4 gallons of water and 1 1/2 cups of ammonia alcohol would the forula call if a factory made 1,280 bottles for stores to sell to customers

If you answer right ill give brainliest, : )

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left