Q: What is the rule for this pattern 9 13 17 21 25?

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To guess a rule for a pattern, you need several numbers, not just one. Of course, you can invent any rule, for example, "all numbers in the sequence are equal to -4", or some more complicated rule.

A single number, such as 24102882, does not establish a pattern!

the answer is 15

Lol

Idk

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An exception does not obey a rule or pattern. Often, the only way to identify an exception is to know the rule or pattern that should be expected.

explain how to find the rule in a numerical pattern

To guess a rule for a pattern, you need several numbers, not just one. Of course, you can invent any rule, for example, "all numbers in the sequence are equal to -4", or some more complicated rule.

there is no rule i think my teacher said its about the pattern

A single number, such as 24102882, does not establish a pattern!

The rule for the pattern is y=x+2. That rule is in the table format in which it would originally be in, but the worded rule would be 'It increases by 2 each time'.

The rule is multiply the previous term by -1 to find the next term.

Lol

Idk

the answer is 15

A pattern that not only continue the pattern but find the value for the given term in the pattern.

One number, such as 2511234795, does not make a pattern.