The Doiron Mansion at Zachary Creek uses the following regression equation to forecast dinners served in the chateaus dining room:

y = 250 + 1.5x

Which figure represents the number of rooms that were occupied on the previous evening and which figure represents the number of walk-in guests?

a. The calculated number that equals x represents the occupied rooms and the number 250 represents the walk-in guests. The calculated number y represents the total number of guests.

b. The calculated number that will equal y represents the occupied rooms and the number 250 represents the walk-in guests.

c. The calculated number that will equal y represents the occupied rooms and the number 1.5 represents the walk-in guests.

d. The calculated number that will equal x represents the occupied rooms and the number 1.5 represents the walk-in guests.