An Sequences

• 12, 19, 26, 33, 40

• 12, 19, 25, 33, 40

• 13, 19, 26, 33, 40

• 13, 19, 25, 33, 40

• 9

• 8

• 7

• 6

• 4, 7, 12

• 4, 8, 16

• 4, 9, 16

• 4, 12, 36

• 16 and 54

• 16 and 18

• 12 and 54

• 12 and 18

A sequence can be generated by using a_n = 5a_(n-1)

where a₁ = 3

and n is a whole number greater than 1.

What is the common ratio (r) in the sequence?

• 5

• 3

• neither of these

A sequence can be generated by using a_n = a_(n-1) +9

where a₁ = 4

and n is a whole number greater than 1.

Which term describes this sequence?

• arithmetic

• geometric

• neither of these

A sequence can be generated by using a_n = a_(n-1) +9 where a₁ = 4 and n is a whole number greater than 1. What is the common difference (d) in the sequence?

• 9

• 4

How do you know what's next?

• NEXT = NOW • 2

• NEXT = NOW • 1/2

• NEXT = NOW + 2

• NEXT = NOW ÷ 1/2