The cost to buy one movie ticket is $7. If the total cost for the movie is a function of how many people go, then the input is? A. the movie
B. the total cost
C. the number of people going
D. the $7

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters