Examine the tile pattern below. .   

1. On your paper, sketch Figures 4 and 5.

   Hint (a):

   How many tiles are in each leg of a figure if you don't count the tile in the corner? How does that compare to the figure number?

   Answer:

   tile
   tile
   tile
   tile
   tile	tile	tile	tile	tile

   Figure 4

   tile
   tile
   tile
   tile
   tile
   tile	tile	tile	tile	tile	tile

   Figure 5

2. How does the pattern grow? Explain how you know.

   Hint (b):

   See the hints for part (a).

   Partial Answer:

   The pattern grows each time by two tiles, one on each arm of the figure. Explain how you know.

3. How many tiles will there be in Figure 0 (the figure before Figure 1)? Explain how you know.

   Hint (c):

   Once you find the answer, remember to explain how you got to that number of tiles. Also, see part (b).