Quadratic Sequences

The first four terms of a quadratic sequences are shown below. Work out the next term.

7, 11, 17, 25.

• 30
• 40
• 35
• 50

The nth term of quadratic sequences is n² - 2n + 8. Work out the first 3 terms

• 8, 9, 10
• [7, 8, 11]
• 5, 10, 15
• 6, 9, 12

The first 5 terms of a quadratic sequences are 6, 10, 16, 24, 34. What is the nth term of the sequence?

• n² + 2n + 3
• 2n² + n + 1
• n² - n + 5
• n² + n + 4

The first 5 terms of the quadratic sequences are -8, 2, 16, 34, 56. Determine whether 272 is a term in the sequences.

• Yes. 10th term

• Yes. 11th Term

• No

• Yes. 20th term

Find the nth term of the sequences 8, 10, 16, 26,...

• n^2 + 5n + 3
• 2n^2 + 4n + 2
• 3n + 8
• 2n² - 4n + 10

Find the nth term of the seqeunces 2, 3, 10, 23, ...

• 3n² - 8n + 7

• n² + 2n + 1

• 8n² + 7

• 2n² - 7