Finding nth Term of Sequences

Finding nth Term of Sequences

Assessment

Interactive Video

Created by

Thomas White

Mathematics

9th - 10th Grade

Hard

The video tutorial explains how to derive a formula for the nth term of an arithmetic sequence. It starts by identifying the pattern of subtracting 3 between terms and then formulates a general rule using multiplication. The formula is further simplified using algebraic techniques, resulting in a concise expression for the nth term. The process is summarized to reinforce understanding.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main goal of the problem discussed in the video?

To identify the first term of the sequence

To find the 10th term of the sequence

To derive a formula for the nth term

To calculate the sum of the sequence

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What operation is repeatedly used to find the next term in the sequence?

Adding 3

Dividing by 3

Subtracting 3

Multiplying by 3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the second element of the sequence expressed mathematically?

1 + 3

1 - 3

1 * 3

1 / 3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first term of the sequence?

0

1

3

2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the third term of the sequence?

-8

1

-2

-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the fourth term of the sequence?

-2

-5

-8

-11

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of the common difference in the sequence?

0

-3

1

3

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