The tiles that Bruce used were each of a square foot in area. The table shows the area covered by Felicia’s tiles in terms of the number of tiles used. Number of Tiles Area Covered (sq ft)
6 1
12 2
18 3
Bruce and Felicia want to know whose tiles cover the most area per tile.

Write an equation representing the area Felicia covered, y, in terms of the number of tiles she used, x.