this week i learned how to find the rule that makes a pattern. for example: find the rule to find the number of matchsticks (M) by the pattern number (n). l= l=l=l l=l=l=l so the rule would be: M=nx4-1. this means the pattern number multiplied by four plus one equals the number of matchsticks. so pattern number 1= 1×4-1=3 l= three matchsticks. pattern 2= 2×4-1=7 l=l=l seven matchsticks.
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