Question

A sequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. If f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence?

f(1) = 2 and f(n) = f(n - 1) + 4; n > 1
f(1) = 4 and f(n) = f(n - 1) + 2n; n > 1
f(1) = 2 and f(n) = f(n - 1) + 4n; n > 1
f(1) = 4 and f(n) = f(n - 1) + 2; n > 1

Answer 1

@AlexandervonHumboldt2 b? @Mehek14

Answer 2

A student needs to make a square cardboard piece. The cardboard should have a perimeter equal to at least 92 inches. The function f(s) relates the perimeter of a cardboard piece, in inches, to the length of its side in inches. Which of the following shows a reasonable domain for f(s)?

23 < s < 46
23 < s < 92
s ≥ 92
s ≥ 23

Answer 3

i would say D

Answer 4

b also right

Answer 5

you would @AlexandervonHumboldt2

Answer 6

you add 2 not 2*n

Answer 7

oh ok

Answer 8

how about for the 2nd one ?

Answer 9

s ≥ 92

Answer 10

? @AlexandervonHumboldt2