Question

The third term in a sequence is 11. The term-to-term rule is "take away 4". Write an expression, in terms of n, for the nth term of the sequence.​

Answer 1

Answer:

23-4n

Step-by-step explanation:

First,we complete our first three terms by adding 4.

... ,... ,11

To find the first and second terms we add 4 to each term.

So the missing terms are 19 and 15.

19,15,11

Then,we calculate the nth term.

To calculate the nth term of a sequence,you first must calculate the difference between each term,which is 4.Since that total is being subtracted,we can plug in the number -4 to our nth term equation.

______-4

Then,we figure out the difference between -4 and the first term.

Well,-4 plus 4 equals 0,and 0 plus 19 equals 19.

The difference between them is 23,so we can now calculate our nth term:

23-4n

And now we can test if this is correct.

If n=3,then our answer should be 11

23-(4 x 3)=11

23-12=11

Hope this helped you out

Answer 2

The term-to-term rule is "take away 4". Write an expression, in terms of n, for the nth term of the