Find the nth term of a quadratic sequence

Find the nth term of a quadratic sequence

Lesson details

Key learning points

  1. In this lesson, we will find the nth term of a quadratic sequence by using a table of values and finding the second difference between terms.

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3 Questions

Q1.
What type of numbers are 1, 8, 27, 64 and 125?
A
B
C
Correct answer: D
Q2.
2. What are the first 5 terms of the sequence with nth term 2n² + 1?
A
B
C
Correct answer: D
Q3.
What are the first 5 terms of the sequence with nth term n³ - 2?
A
B
C
Correct answer: D

3 Questions

Q1.
What is the nth term of the sequence 2, 11, 26, 47, 74, …?
A
B
Correct answer: C
D
Q2.
What is the nth term of the sequence 13, 10, 5, -2, -11, …?
A
Correct answer: B
C
D
Q3.
What is halved to find the n² coefficient?
A
B
Correct answer: C
D

Lesson appears in

UnitMaths / Quadratic sequences