UPSKILL MATH PLUS

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Learn moreWith the help of variable, find the rule which gives the number of matchsticks needed to make the pattern.

**1.**A pattern of letter \(I\) as is $i$.

[Note: Use \(y\) as the variable to write the rule]

**2.**A pattern of letter \(M\) as is $i$.

[Note: Use \(y\) as the variable to write the rule]