Sunday, February 12, 2012

Chapter 10.2 Page 361 #5

The following figures are made of lines, red dots, and black dots.
1. Describe as many patterns as you can.
Red dots keep adding up 1 after a Figure.
Black dots keep adding up 4 after a Figure.
4 crossed lines add up 4 more every Figure.

2.What is the number of red dots in Figure 100 of this pattern?
100 red dots.

3.Make a table that shows the figure number and number of black dots for the first 7 figures.

4.What is an expression for the number of black dots in any figure?

5.What is the number of black dots in Figure 51 of the pattern?

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