### Home > MC1 > Chapter 9 > Lesson 9.1.3 > Problem 9-37

9-37.

Design your own pattern make of dots or toothpicks.

Draw the first three figures of your pattern.

Everyone's dots will look different, but make sure there is a pattern. Sharon's first three figures are below.

Show how you can predict how many tiles or toothpicks will be in the 30

^{th}figure.For each figure of Sharon's pattern, there are

dots, where is the figure number.

In the 30th Figure, there aredots, since .

Try writing a similar expression for the number of dots in your pattern.