1. Pascal’s Triangle An array of numbers derived from many different combinations . To generate this array, we make a chart: 6 5 4 3 2 1 0 6 5 4 3 2 1 0 n r

2. Pascal’s Triangle An array of numbers derived from many different combinations . To generate this array, we make a chart: 6 5 4 3 2 1 0 6 5 4 3 2 1 0 n r

3. Pascal’s Triangle We more commonly see the triangle written in its isosceles form: To find the r th term of the n th row, what would you do? . In other words, gives you the (r +1) st term in the n th row.

4. Some Properties of Pascal’s Triangle 1. 2. 3. 4. 5.