Which functions represent the arithmetic sequence 8, 1.5, –5, –11.5 . . ? check all that apply. f(n) = –6.5n + 14.5 f(n) = –1.5n + 9.5 f(n) = 6.5n + 1.5 f(1) = 8, f(n + 1) = f(n) – 6.5 f(1) = 8, f(n + 1) = f(n) – 1.5 f(1) = 8, f(n + 1) = f(n) + 6.5

f(n) = –6.5n + 14.5

f(1) = 8, f(n + 1) = f(n) – 6.5

Step-by-step explanation:

The nth term of an arithmetic sequence is given as

Tn = a + (n-1)d

where a is the first term and d is the common difference between two consecutive terms

From the given sequence,

a = 8, d = 1.5 - 8

d = -6.5

As such, Tn = f(n) = 8 + (n-1)-6.5

= 8 - 6.5n + 6.5

= 14.5 - 6.5n

f(1) = 8

f(n + 1) - f(n) = – 6.5

f(n + 1) = f(n) – 6.5

step-by-step explanation:

ok one would be money, and the other would be refreshments or something similar. if each bag of popcorn is 5.00 and each drink is half of that that means drinks are 2.50 the proper way to do that would to look and see how much of each you can buy without exceeding a limit of 30.00