Question

Find the rule which gives the number of matchsticks required to make the following matchsticks pattern. Use a variable to write the rule.

Answer 1

Estimate the required rule:

Let us assume a variable $x$.

If $n$ be the number of matchsticks required to make a particular pattern, then the rule of the pattern,

$=nx$

From the figure we can see, the number of matchsticks that are required to make the given pattern is $2$.

Therefore, the rule which gives the number of matchsticks required to make the given pattern is $2x$.