A2 QUIZ Sequences (Arithmetic and Geometric)

The difference between an "arithmetic" and "geometric" sequence is what?

• Arithmetic you multiply to get the next term, where geometric you add to get the next term.

• Arithmetic you add to get the next term, where geometric you subtract to get the next term.

• Arithmetic you add to get the next term, where geometric you multiply to get the next term.

• Arithmetic you multiply to get the next term, where geometric you divide to get the next term.

What kind of sequence is this?

207, 189, 171, 153, ...

• Arithmetic

• Geometric

• Neither

What kind of sequence is this?

-2, -12, -72, -432, ...

• Arithmetic

• Geometric

• Neither

What kind of sequence is this?

5, 10, 17, 26, ...

• Arithmetic

• Geometric

• Neither

What kind of sequence is this?

25, 12.5, 6.25, 3.125, ...

• Arithmetic

• Geometric

• Neither

Evan bagged the plastic bottles after a recycling drive. He placed 56 bottles in the first bag, 41 bottles in the second bag, 26 bottles in the third bag, and 11 bottles in the fourth bag. What kind of sequence is this?

• Arithmetic

• Geometric

• Neither

Kadra is drawing stars in her notebook. She draws 3 stars on the first page, 5 stars on the second page, 8 stars on the third page, and 13 stars on the fourth page. What kind of sequence is this?

• Arithmetic

• Geometric

• Neither

In a spelling bee the contestants earned coupons for free lunches. The first place student will receive 24 free lunches, the second place student will receive 12 free lunches, the third place student will receive 6 free lunches, and the fourth student will receive 3 free lunches. What kind of sequence is this?

• Arithmetic

• Geometric

• Neither

Given the "arithmetic" sequence:

-183, -83, 17, 117, ...

what is it's common difference?

Given he "geometric" sequence:

-2, 10, -50, 100, ...

what is it's common ratio?