Find Nth Term Given Explicit Formula
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Standards-aligned
Anthony Clark
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given the sequence:
25, 21, 17, 13,...
Write the explicit equation that models the sequence.
an = 4n + 29
an = -4n + 25
an = -4n + 29
an = 4n + 25
Tags
CCSS.HSF.BF.A.2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the rule (explicit equation) for the nth term given
60, 55, 50, 45, ...
an= -5+60n
an= -5n+55
an= -5n+65
an= 5n+55
Tags
CCSS.HSF.BF.A.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Write the explicit rule for the arithmetic sequence
12, 10, 8, 6, ...
an = 12n - 14
an = 2n - 14
an = -2n + 14
an = -12n + 14
Tags
CCSS.HSF.BF.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find 26th term in the arithmetic sequence: -15, -35, -55, -75, ...
(HINT - Find the explicit formula first, then use your formula!)
-515
-490
-535
460
Tags
CCSS.HSF.BF.A.2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The explicit formula for a sequence is an = 5 − 3n. What is the value of a22 ?
a22 = -61
a22 = 61
a22 = -1
a22 = -51
Tags
CCSS.HSF.BF.A.2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the 40th term in the sequence with the given explicit formula:
12
138
128
-16
Tags
CCSS.HSF.BF.A.2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the 25th term if the sequence whose nth term is: 10n-51
250
200
199
159
Tags
CCSS.HSF.BF.A.2
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