Test : Arithmetic Sequences

Front

Define arithmetic sequences.

Back

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

Front

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

Back

Front

What is the common difference in the sequence 5, 8, 11, 14, ...?

Back

The common difference is 3.

Front

Find the 10th term of the arithmetic sequence: 4, 9, 14, ...

Back

The 10th term is 49.

Front

Which of the following sequences is NOT an arithmetic sequence? 1) 3, 6, 9 2) 2, 4, 8 3) 5, 10, 15 4) 7, 14, 21

Back

2, 4, 8 is NOT an arithmetic sequence.

Front

True or False: The sequence 10, 15, 20, 25 is an arithmetic sequence.

Back

True.

Front

What is the 15th term of the arithmetic sequence: 2, 5, 8, ...?

Back

The 15th term is 44.

Front

If the first term of an arithmetic sequence is 7 and the common difference is 2, what is the 5th term?

Back

The 5th term is 15.

Front

How do you find the sum of the first n terms of an arithmetic sequence?

Back

Front

What is the 20th term of the arithmetic sequence: 1, 4, 7, ...?

Back

The 20th term is 58.