
Geometric and Arithmetic Sequences

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Thomas White
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the common difference in the sequence 3, 5, 7, 9?
4
2
3
1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can the nth term of an arithmetic sequence be expressed?
a + n - 1
a + n
a + (n - 1)d
a + nd
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for the sum of terms in an arithmetic sequence?
n/2 * (a - l)
n/2 * (a + l)
n * (a + l)
n * (a - l)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What defines a geometric sequence?
Common product
Common sum
Common ratio
Common difference
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the nth term of a geometric sequence expressed?
a * r^n
a * n^r
a * r^(n-1)
a + r^(n-1)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the common ratio in the sequence 3, 9, 27, 81?
5
4
3
2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for the sum of terms in a geometric sequence?
a * (r^n - 1) / (r - 1)
a * (1 - r^n) / (1 - r)
a * (1 + r^n) / (1 + r)
a * (r^n + 1) / (r + 1)
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