Question

Which of the following is tge first four terms of the sequence a n=3n+5?

Answer 1

c

to generate the first four terms, substitute n = 1, 2, 3, 4 into the formula

$a_{1}$ = (3 × 1) + 5 = 3 + 5 = 8

$a_{2}$ = (3 × 2 ) + 5 = 6 + 5 = 11

$a_{3}$ = (3 × 3) + 5 = 9 + 5 = 14

$a_{4}$ = (3 × 4) + 5 = 12 + 5 = 17

the first four terms are 8, 11, 14, 17 → c