Question

2. what is the 8th term of the sequence given by an=3n-5
a. -2
b. 19
c. 24
d.29
3.write an explicit formula for the sequence 2,8,14,20,26
a. an=2n-2
b. an=2n+2
c. an=4n+2
d. an=6n-4

Answer 1

(1) To determine the 8th term of the sequence, substitute 8 to n of the equation. 
                                     a₈ = 3(8) - 5 = 19
Answer is letter B. 
 
(2) It can be observed that the numbers in the sequence is 6 times n (its position) minus 4. Thus, the answer is letter D. 

Answer 2

The answer to number 2. is:

b. 19

The answer to number 3. is:

an=6n-4