Question

work out a expression for the nth terms for each sequence. :11,7,3,-1,​

Answer 1

Answer:

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Answer 2

Answer:

nth term = 15 - 4n

Step-by-step explanation:

let a be the first term and b be the nth term and d be the common difference.

b=a + (n-1)d

b= 11 + (n-1) x -4

b= 11 + -4n +4

b= 15 - 4n

therefore,  nth term = 15 - 4n