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geometric sequence and recursive formula

Authored by Parveen Vashisht

Mathematics

8th Grade

Used 1+ times

geometric sequence and recursive formula
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21 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 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

2.

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

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the 15th term of the sequence an = -3n+50

95
-5
5
-95

4.

MULTIPLE CHOICE QUESTION

5 mins • 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)

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following equations is explicit?

f(n) = 4n + 5
f(n) = f(n-1) x 5

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following equations is recursive?

f(n) = f(n-1) +4
f(n) = 2n - 5

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which is an arithmetic sequence?

1, 3, 5, 7, 9, ...

1, 2, 4, 8, 16, 32, ...

1, 1, 2, 3, 5, 8, 13, ...

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