Arithmetic Sequences

Front

An arithmetic sequence is shown below.

5, 1, -3, -7, ...

Which explicit formula can be used to determine the nth term of the sequence?

a_n = -4n + 5

,

a_n = -4n + 9

,

a_n = -5n + 1

,

a_n = -5n + 9

Back

a_n = -4n + 9

Front

Sequence: 32, 26, 20, 14, ...
Which explicit formula can be used to determine the nth term?

Back

a_n = -6n + 38

Front

The table shown shows a pattern.

Based on the table, which expression represents the value of the nth term of the pattern?

Options: n - 2, n² + 2, 4n + 3, n² - 2

Back

n² - 2

Front

5th, 6th, 7th terms of arithmetic sequence: -10, -7, -4. Find explicit formula.

Back

f(n) = 3n - 25

Front

Write a recursive rule for the sequence -10, -3, 4, 11, ...

Back

a_n = a_n-1 + 7

Front

The first four terms of a sequence are shown below.

-10, -14, -18, -22, ...

Which explicit formula can be used to determine the nth term in the sequence?

a_n = n - 10

,

a_n = -4n - 14

,

a_n = -4n - 6

,

a_n = n - 4

Back

a_n = -4n - 6

Front

Sequence: -20, -17, -14, -11, -8, ... Which explicit equation can be used to determine the value of the nth term? Options: aₙ = n + 3, aₙ = 3n + 23, aₙ = n - 23, aₙ = 3n - 23

Back

aₙ = 3n - 23

Front

An arithmetic sequence has these properties:

a₁ = 2

a_n = a_(n-1) + 5

What are the first four terms of the sequence?

Back

2, 7, 12, 17

Front

The sequence below shows the number of raffle tickets that Samantha sold each day during a month:

3, 7, 11, 15, ...

Which explicit formula models the number of tickets Samantha sold on day x?

Options: t(x) = 4x - 1, t(x) = x + 4, t(x) = 4x + 3, t(x) = 3x + 4

Back

t(x) = 4x - 1

Front

Write a recursive formula for the sequence 8, 10, 12, 14, 16, ... and find the next term.

Back

a_n = a_n-1 + 2; a₁ = 8; Next term is 18