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Home > CCA > Chapter 4 > Lesson 4.3.1 > Problem 4-100

4-100.

A tile pattern has 10 tiles in Figure 2 and increases by 2 tiles for each figure. Find a rule for this pattern and then determine how many tiles are in Figure 100. Homework Help ✎

Work backwards from Figure 2 to find out the starting number of tiles.
Consider using a table, illustration, or graph to help you solve.

y = mx + b

m = growth rate
b = starting number of tiles

To find how many tiles are in figure 100, substitute 100 for x and solve for y.

206 tiles.