Is 22 a number in the sequence with nth term = 4n+1 ?Īs 5.25 is not an integer this means that 22 is not a number in the sequence. If n (the term number) is an integer the number is in the sequence, if n is not an integer the number is not in the sequence. In order to work out whether a number appears in a sequence using the nth term we put the number equal to the nth term and solve it. Figure 2 Graph of the d (n) 2n + 1, where d (n) is the diagram number If we extend the trend line, it will pass the (0,1) (Why). In order to find any term in a sequence using the nth term we substitute a value for the term number into it. If we want to get the equation of the linear function that describes the relationship in our problem, since several ordered pairs are given, we can use the slope intercept formula.
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