Arithmetic Sequences

Front

What is an arithmetic sequence?

Back

A sequence whose terms change by adding the same number each time.

Front

What is the first term (a₁) in the sequence -6, -14, -22, -30, ...?

Back

-6

Front

Is the sequence 5, 10, 20, 40, ... arithmetic?

Back

No

Front

Is the sequence 4, 8, 16, 32, ... arithmetic?

Back

No

Front

Is the sequence 78, 785, 7855, 78555, ... arithmetic?

Back

No

Front

What is the common difference in the arithmetic sequence 2, 5, 8, 11, ...?

Back

3

Front

If the first term of an arithmetic sequence is 3 and the common difference is 4, what is the fifth term?

Back

15

Front

What is the formula for the nth term of an arithmetic sequence?

Back

a_n = a₁ + (n-1)d, where d is the common difference.

Front

What is the common difference in the sequence 10, 7, 4, 1, ...?

Back

-3

Front

If an arithmetic sequence has a₁ = 10 and a₄ = 22, what is the common difference?

Back

4