The loft in Casa Batllo in Barcelona, contains a series of sixty catenary arches which closely resemble parabolas. The left side of the arch is close to parabolic in shape all the way to the floor. On the right side of the arch, it is parabolic in shape until 2.01 meters from the floor. Then the arch drops vertically at this point. The equation of the parabola that closely models these arches is 3 20 . (y - 2.42) = 12, where x and y are measured in meters. How tall is the arch? meters How wide is the floor? meters