Geometric Sequences — Unit test Answers
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Which formula can be used to describe the sequence?, −4, −24, −144,...
A
f(x) = 6
B
f(x) = −6
C
f(x) = (6)x − 1
D
f(x) = (−6)x − 1
22
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Isaak is writing an explicit formula to represent the sequence.64, 112, 196, 343, ...What value should he use as the common ratio in the formula? Write the answer as a decimal rounded to the nearest hundredth.
A
0.75B
1.75C
58D
27923
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)24
The table represents an exponential function.
A
0.2B
0.25C
0.5D
0.7525
Lena is asked to write an explicit formula for the graphed geometric sequence.
A
1.0B
1.5C
2.5D
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