Explicit to Recursive Formula
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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14 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given the first five terms, write the recursive formula.
15, 12, 9, 6, 3 ....
u1 = 15
un = un-1 + 3
u0 = 15
un = un-1 + 3
u1 = 15
un = un-1 - 3
u0 = 15
un = un-1 - 3
Tags
CCSS.HSF.BF.A.2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Write the recursive formula of 13, 9, 5, 1, -3, ...
an=an-1-4
an=an-1+3
an=an-1-5
an=an-1+4
Tags
CCSS.HSF.BF.A.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the explicit rule for the sequence:
11, 22, 44, 88...
an = 2(11)n-1
an = 11x2
an = 11(2)n-1
an+1 = an * 2; a1 = 11
Tags
CCSS.HSF.LE.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the first four terms of the sequence. an= a(n-1) - 18 where a1=10
18, 8, -2, -12
28, 46, 64, 82
-8, -26, -44, -60
10, -8, -26, -44
Tags
CCSS.HSF.BF.A.2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A
B
C
None of these
Tags
CCSS.HSF.IF.A.3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which statement is true about this formula?
It is an EXPLICIT formula. The first four terms are 5,7,9,11
It is a RECURSIVE formula. The first four terms are 5,13,29,61
It is an EXPLICIT formula. The first four terms are 13,15,17,19
It is a RECURSIVE formula. The first four terms are 13,29,61,125
Tags
CCSS.HSF.IF.A.3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which recursive formula best describes the sequence 2, -6, 18, - 54...
a1 = 2; an = -4 an-1
a1 = 2; an = -8 an-1
a1 = 2; an = 2 an-1
a1 = 2; an = -3 an-1
Tags
CCSS.HSF.BF.A.2
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