A Level Sequence Notation Intro!

Identify the first four terms of the sequence defined by a term-to-term rule...

u_n+1 = u_n + 5

u₁ = 3.1

• 3.1, 8.1, 13.1, 18.1...

• 3.1, 3.6, 4.1, 4.6...

• 5, 8.1, 11.2, 14.1...

• 5, 10, 15, 20...

Identify the first four terms of the sequence defined by a term-to-term rule...

u_n+1 = 3u_n + 1

u₁ = 0

• 0, 1, 4, 13...

• 0, 3, 12, 39...

• 4, 7, 10, 13...

• 4, 13, 40, 121...

Identify the first four terms of the sequence defined by a term-to-term rule...

 $u_{n+1}=-\frac{3}{u_n}$  
 $u_1=3$  

• 3, -1, 3, -1...

• 3, -3, 3, -3...

• -1, 3, -1, 3...

• 3, 1, 3, 1...

Identify the first four terms of the sequence defined by a term-to-term rule...

u_n+1 = u_n + 4

u₄ = 12

• 0, 4, 8, 12...

• 12, 16, 20, 24...

• 12, 8, 4, 0...

• 24, 20, 16, 12...

Identify the first four terms of the sequence defined by a term-to-term rule...

u_n+1 = u_n - 2

u₆ = 3

• 13, 11, 9, 7...

• 3, 1, -1, -3...

• 3, 5, 7, 9...

• 9, 7, 5, 3...

Identify the first four terms of the sequence defined by a term-to-term rule...

u_n+1 = u_n - 3

u₁ = 10

• 10, 7, 4, 1...

• 3, 13, 23, 33...

• 3, -7, -17, -27...

• 10, 13, 16, 19...

Identify the first four terms of the sequence defined by the nth term rule...

u_n = 3n + 2

• 5, 8, 11, 14...

• 2, 5, 8, 11...

• 3, 5, 7, 9...

• 3, 6, 9, 12...

Identify the first four terms of the sequence defined by the nth term rule...

u_n = 1.5n - 6

• -4.5, -3, -1.5, 0...

• 1.5, -4.5, -10.5, -16.5

• 7.5, 9, 10.5, 12...

• -4.5, -6, -7.5, -9...

Identify the first four terms of the sequence defined by the nth term rule...

u_n = 5n²

• 5, 20, 45, 80...

• 25, 100, 225, 400...

• 5, 10, 15, 20...

• 1, 5, 20, 45...

Identify the first four terms of the sequence defined by the nth term rule...

u_n = 3ⁿ

• 3, 9, 27, 81

• 1, 8, 27, 64...

• 3, 6, 9, 12...

• 3, 12, 27, 48...