Formal Formative: Arithmetic and Geometric Sequence and Series

Select all arithmetic sequences.

• 20, 40, 80, 160, 320,...

• 12, 6, 0, -6, -12,....

• 20, 22.5, 25, 27.5, 30, ...

• 3, -6, 12, -24, 48, ...

Tags

CCSS.HSF.BF.A.2

Which pattern of numbers represents a geometric sequence? select the correct answer

• 2, 4, 6, 8, 10..

• $200,40,8,\frac{8}{5},\frac{8}{25},...$

• 3, 9, 15, 21, 27,...

• 25, 15, 5, -5, -15, ...

Tags

CCSS.HSF.BF.A.2

Find the next 3 terms in the sequence -5, -3, -1,

______, _______ , ________,

select the correct answer!

• -1, -3, -5

• 1, 3, 5

• 2, 5, 7

• 3, 5, 8

Tags

CCSS.HSF.BF.A.2

Find the next 3 terms in the sequence

x + 6, x + 2, x - 2, ________, _______, ________

• x + 4, x + 8, x + 12

• x - 4, x - 8, x - 12

• x - 6, x- 8, x - 14

• x - 6, x - 10, x - 14

Tags

CCSS.HSF.BF.A.2

What are the next 2 terms of the sequence

50, 10, 2 ,_____, ______?

• $\frac{2}{5},\frac{2}{25}$

• $-36,\ -76$

• $\frac{2}{5},\frac{1}{5}$

• $8,14$

Tags

CCSS.HSF.BF.A.2

Find the 37th term for the sequence 17, 26, 35, ...Show your work on paper. Type your answer in the blank. Don't use spaces

Tags

CCSS.HSF.BF.A.2

What is the 6^th term for the sequence given

-2, -14, -98...

Show your work on paper. Type your answer in blank, no spaces.

Tags

CCSS.HSF.BF.A.2

Find the first term in the arithmetic sequence for which $a_{20}=120;\ d=4$  Show your work on paper! Then type your answer in the blank! no spaces

Tags

CCSS.HSF.BF.A.2

 $a_n=62;\ a_1=5;d\ =3$  

Find n for the arithmetic sequence using the information above! Show your work on paper then type your answer in blank. no spaces

Tags

CCSS.HSF.BF.A.2

 $a_1=-12;\ a_8=-54$  

Find d for the arithmetic sequence given the information above. Show your work on paper then select the correct answer!

• d = 8

• d = 5

• d = -6

• d = 7

Tags

CCSS.HSF.BF.A.2