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Mathematics

9th Grade

CCSS covered

Used 1+ times

Recursive Formula Geometric Sequences
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19 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The next two terms of the sequence 2,-4, 8,-16 are

32, 64

32, -64

-64, 108

32, 20

Tags

CCSS.HSF.BF.A.2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The recursive formula can only be used if you know the previuos term

True

False

Tags

CCSS.HSF.BF.A.2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The Recursive Formula for the Geometric Sequence is:

A.  an = a1 + d (n−1)A.\ \ a_n\ =\ a_1\ +\ d\ \left(n-1\right)  

B.  an = a(n−1) + dB.\ \ a_{n\ }=\ a_{\left(n-1\right)}\ +\ d  

an = a1 ⋅ r (n−1)a_{n\ }=\ a_{1\ }\cdot\ r\ ^{\left(n-1\right)}  

an = a(n−1) ⋅ ra_n\ =\ a_{\left(n-1\right)}\ \cdot\ r  

Tags

CCSS.HSF.BF.A.2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

Explicit Formula

Recursive Formula

Arithmetic Formula

Geometric Formula

Tags

CCSS.HSF.BF.A.2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which recursive formula best describes the sequence
2, -6, 18, - 54... 

an=an-1* -4, a1 = 2

an=an-1* - 8, a1 =2

an=an-1* 2, a1 = -3

an=an-1* -3, a1 =2

Tags

CCSS.HSF.IF.A.3

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is the recursive formula for geometric sequences?

gn=gn-1 (r)

gn=g1 (rn-1)

Tags

CCSS.HSF.BF.A.2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How do you write the recursive formula for geometric sequences using function notation?

f(n) = f(n-1) * r

f(n) = f(n-1) / r

f(n) = f(n-1) + r

f(n) = f(n-1) + r^n

Tags

CCSS.HSF.IF.A.3

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