Final answer:
The rule for the pattern of tile increase is T(n) = 8 + (n-1)*2, where n is the figure number. By applying this rule, Figure 100 has 206 tiles.
Step-by-step explanation:
A rule for a tile pattern where the number of tiles increases by a constant amount for each subsequent figure. Given that there are 10 tiles in Figure 2, and it increases by 2 tiles for each next figure, we can deduce that each figure number corresponds to a certain number of tiles by following a linear pattern. The rule for the pattern is to start with 8 tiles for Figure 1 (since Figure 2 has 10, and we're adding 2 for each next figure), and add 2 tiles for every next figure number. To express this as a formula, we can use the formula for a linear sequence: T(n) = a + (n-1)d, where T(n) is the number of tiles in Figure n, a is the first term (number of tiles in Figure 1), n is the figure number, and d is the common difference (the number of tiles we're adding each time, which in this case is 2).
Using the formula:
- a (first term) = 8 tiles (start with this many for Figure 1)
- d (common difference) = 2 tiles (because each figure have 2 more tiles than the previous one)
So the formula to find the number of tiles in Figure n is:
T(n) = 8 + (n-1)×2
To find the number of tiles in Figure 100, plug 100 in place of n:
T(100) = 8 + (100-1)×2
T(100) = 8 + 198 = 206 tiles
Therefore, Figure 100 has 206 tiles.