### Home > MC1 > Chapter 3 > Lesson 3.2.1 > Problem 3-32

3-32.

Draw the 3

^{rd}and 5^{th}figures.Can you see a pattern in the completed figures? Use this pattern to complete figures 3 and 5.

How many dots will there be in the 50

^{th}figure?The number of dots in a figure is described by the equation # of dots = 2 + 2

*x*where*x*is the figure number. Plug in*x*= 50 to find the answer.dots Is there a figure that will have exactly 38 dots? If there is, which figure is it?

Plug in

for ''# of dots'' in the equation above, then solve for *x*. If you get a whole number, that is the figure number.

Use the eTool below to create the patterns for Fig. 3 and Fig. 5.

Click the link at right for the full version of the eTool: MC1 3-32 HW eTool