writing a recursive formula for geometric sequence

writing a recursive formula for geometric sequence

9th Grade

12 Qs

quiz-placeholder

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writing a recursive formula for geometric sequence

writing a recursive formula for geometric sequence

Assessment

Quiz

Mathematics

9th Grade

Medium

CCSS
HSF.BF.A.2, HSF.IF.A.3

Standards-aligned

Created by

chuck Lohmann

Used 36+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Determine the first 3 terms of the following sequence.

t1= -3

tn=tn-1(3)

-3, 9, 27

-3, -9, -27

-3, -6, -9

-3, 6,9

Tags

CCSS.HSF.BF.A.2

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the common ratio: 64, -16, 4, -1, ...
r = -8
r = -1/4
r = -4
r = 4

Tags

CCSS.HSF.BF.A.2

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which formula is used to find the recursive equation for geometric sequences?
an = an-1 + d
an = an-1 * r
an = a1 + d(n-1)
an = a1 * rn-1

Tags

CCSS.HSF.BF.A.2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which sequence is represented by the equation 2(7)n-1 ?
7, 14, 28, 56...
2, 14, 98, 686...
2, 9, 16, 23...
7,9,11,13...

Tags

CCSS.HSF.BF.A.2

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Write a recursive formula for the following sequence:

16,8, 4, 2,...

a1=16

an=an-1 (2)

a1=16

an=an-1 (1/2)

a1=16

an=an-1 + (1/2)

a1=16

an=an-1 + (2)

Tags

CCSS.HSF.BF.A.2

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which recursive formula best describes the sequence
2, -6, 18, - 54... 
an=an-1* -4, a= 2
an=an-1* - 8, a=2
an=an-1* 2, a= -3
an=an-1* -3, a=2

Tags

CCSS.HSF.IF.A.3

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the recursive rule for the sequence:
2, 6, 18, 54...
f(3), f(n)=f(n-1)2
f(2), f(n)=f(n-1)4
f(1)=3, f(n)=f(n-1)2
f(1)=2, f(n)=f(n-1)3

Tags

CCSS.HSF.IF.A.3

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