Question

Use the iterative rule to find the 11th term in the sequence.

Answer 1

Answer:

-4

Step-by-step explanation:

The general, nth term, of a sequence is given by the formula:

$a_n=18-2n$

We can plug in n = 1 to find the first term, thus we have:

$a_1=18-2(1)\\a_1=16$

We can plug in n = 2, to the find the 2nd term, which is:

$a_2=18-2(2)\\a_2=14$

Similarly, to get 11th term, we simply plug in n = 11 into the general term rule. so we have:

$a_n=18-2n\\a_{11}=18-2(11)\\a_{11}=18-22\\a_{11}=-4$

11th term is -4