In Example 2, the solution was found by going 7 blocks down and 3 blocks over. Could the solution also have been obtained by going 3 blocks over and 7 blocks down? Would this solution end up in a different location in Pascal’s triangle? Describe a property of Pascal’s triangle that is relevant to an answer for this question.

Data from Example 2

In how many different ways could Melissa get from the YWCA (point A in Figure 1.1) to the YMCA (point D)?

Figure 1.1

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