Geometric Sequences Answers
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1
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–81, 108, –144, 192, ...
A
f(x) = –81
B
f(x) = –81
C
f(x) = –81
D
f(x) = –81
2
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Lena is asked to write an explicit formula for the graphed geometric sequence.
A
1.0B
1.5C
2.5D
2.04
A sequence of numbers begins with 12 and progresses geometrically. Each number is the previous number divided by 2.
A
One-half
B
2C
6D
125
Which graph represents a geometric sequence?
A
On a coordinate plane, 5 points are plotted. The points are (1, 1), (2, 3), (3, 5), (4, 7), (5, 9).
B
On a coordinate plane, 4 points are plotted. The points are (1, 1), (2, 2), (3, 4), (4, 8).
C
On a coordinate plane, 3 points are plotted. The points are (1, 2), (4, 4), (9, 6).
D
On a coordinate plane, 3 points are plotted. The points are (1, 1), (2, 4), (3, 9).
6
Select two options.
A
The graph will show exponential growth.B
The graph will appear linear.C
The domain will be the set of natural numbers.D
The range will be the set of natural numbers.E
The graph will show exponential decay.
8
Negative 2 and two-thirds, negative 5 and one-third, negative 10 and two-thirds, negative 21 and one-third, negative 42 and two-thirds, ellipsis
A
f(x + 1) = –2f(x)B
f(x + 1) = f(x)
C
f(x + 1) = f(x)D
f(x + 1) = 2f(x)9
Natalia is writing a recursive formula to represent the sequence.8, 12, 18, 27, ...What value should she use as the common ratio in the formula?
A
Option
B
Option
C
Option
D
Option
10
On a coordinate plane, 3 points are plotted. The points are (1, 80), (2, 20), (3, 5).
A
f(x) = 80
B
f(x) = 320C
f(x) = 80(4)x – 1D
f(x) = 320(4)x – 1Did you find these answers helpful?
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