1. Algebra: Consider the arithmetic sequence 87, 83, 79, 75, . . .. (You may assume that the pattern displayed continues for the whole sequence.)?
(a) Find the formula for the general term tn.
(b) Is −145 a member of the sequence. Give reasons for your answer.
(a) Find the formula for the general term tn.
(b) Is −145 a member of the sequence. Give reasons for your answer.
2 Answers
Explanation:
Each term is
sequence
The difference between the sequence and the
So the
To see if a number is in the sequence, equate the
subtract
divide by
Term number
Explanation:
In sequence
Then, is an arithmetic sequence of difference
a) We know that general term in an arithmetic sequence is given by:
b) let's see if there is an
Thus, the