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Mathematics

9th Grade

CCSS covered

Used 3+ times

Making Explicit and Recursive Formulas
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the first four terms of the sequence.

an= a(n-1) - 18 where a1=10

10, 8, -2, -12

28, 46, 64, 82

-8, -26, -44, -60

10, -8, -26, -44

Tags

CCSS.HSF.BF.A.2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Write the recursive formula for 6, 17, 28, 39, 50....

an=an-1+11
a1=6

an=an-1-4
a1=6

an=an-1+9
a1=6

an=an-1+6
a1=6

Tags

CCSS.HSF.BF.A.2

3.

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

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Write a recursive formula for the following sequence: 10, 5, 0, -5,...

a1= 10

an= an-1 - 5

a1= 10

an= an-1 + 5

a1= 10

an= an (5)

a1= 10

an= an-1 (5)

Tags

CCSS.HSF.IF.A.3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following equations is explicit?

f(n) = 4n + 5

f(n) = f(n-1) x 5

Tags

CCSS.HSF.BF.A.2

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following equations is recursive?

f(n) = f(n-1) +4

f(n) = 2n - 5

Tags

CCSS.HSF.IF.A.3

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

an=a1+(n−1)da_n=a_1+\left(n-1\right)d  , where n is the position in the sequence and d is the difference between terms.

Sequence

Recursive Formula

Explicit Formula for an Arithmetic Sequence

Explicit Formula for a Geometric Sequence

Tags

CCSS.HSF.BF.A.2

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