Sequences

What is the Rule for this sequence?
3, 7, 11, 15, ...

• +6
• +5
• +4
• +2

What are the first 3 terms of the sequence whose nth term is: 5n-4

• 1, 6, 11, 16, 21
• 5, 4, 3
• -4, 1, 6
• 1, 6, 11

Find the 25th term if the sequence whose nth term is: 10n-51

• 250
• 200
• 199
• 159

Find the nth term of...
3,5,7,9...

• 2n+1
• 2n-1
• 2n+2
• 2n-2

What is the a_n-1 if the a_n=5?

• 7
• 6
• 4
• 72

Write the recursive formula for 4, 8, 12....

• a_n=a_n-1-7
• a_n=a_n-1-4
• a_n=a_n-1+3
• a_n=a_n-1+4

Write the recursive formula of 13, 9, 5...

• a_n=a_n-1-4
• a_n=a_n-1+3
• a_n=a_n-1-5
• a_n=a_n-1+4

A formula that requires the computation of all previous terms to find the value of a_n.

• Explicit Formula

• Recursive Formula

• Arithmetic Formula

• Geometric Formula

What is the 15th term of the sequence an = -3n+50

• 95
• -5
• 5
• -95

What does a₁ represent?

• Any term

• First term

• Last term