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​Q16: Question – Paper 3 – June 2018

Helpful Links

Content:

• Quadratic Sequences: Using the Nth Term Rule
• ​Linear Simultaneous Equations: Elimination Method – Part 1
• Linear Simultaneous Equations: Elimination Method – Part 2​​

Quizzes:

• ​Quadratic Sequences: using the Nth Term Rule
• Linear Simultaneous Equations: Elimination Method

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Question

16) The nth term of a sequence is given by an² + bn where a and b are integers.

 

The 2nd term of the sequence is –2

The 4th term of the sequence is 12

 

a) Find the 6th term of the sequence.

[4 marks]

​Here are the first five terms of a different quadratic sequence.

b) Find an expression, in terms of n, for the nth term of this sequence.

[2 marks]

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