Explicit Formulas of Geometric Sequences

Explicit Formulas of Geometric Sequences

9th - 10th Grade

10 Qs

quiz-placeholder

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Explicit Formulas of Geometric Sequences

Explicit Formulas of Geometric Sequences

Assessment

Quiz

Mathematics

9th - 10th Grade

Practice Problem

Easy

CCSS
HSF.BF.A.2

Standards-aligned

Created by

Barbara White

Used 3+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the common ratio for the geometric sequence:

2, -4, 8, -16, ...

2

-2

1/2

-1/2

Tags

CCSS.HSF.BF.A.2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the common ratio for the geometric sequence:

10, 20, 40, 80, ...

10

2

1/2

4

Tags

CCSS.HSF.BF.A.2

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Write the explicit formula for the geometric sequence.

10, 20, 40, 80, ...

an = 10(2)n-1

an = 10(2)n

an = 2(10)n-1

an = 2(10)n

Tags

CCSS.HSF.BF.A.2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the common ratio for the geometric sequence:

7, -7, 7, -7, ...

1

-7

7

-1

Tags

CCSS.HSF.BF.A.2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Write the explicit formula for the geometric sequence.

7, -7, 7, -7, ...

an = 7(1)n

an = 7(-1)n-1

an = 7(-1)n

an = -1(7)n-1

Tags

CCSS.HSF.BF.A.2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the common ratio for the geometric sequence:

3, -12, 48, -192, ...

-4

4

1/4

-1/4

Tags

CCSS.HSF.BF.A.2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Write the explicit formula for the geometric sequence.

3, -12, 48, -192, ...

an = 4(3)n-1

an = -4(3)n-1

an = 3(4)n-1

an = 3(-4)n-1

Tags

CCSS.HSF.BF.A.2

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