Test (Units 1 & 2)

Find the next three terms in the arithmetic sequence: -33, -24, -15, -6, ...

• -1, 7, 15

• -5, 2, 9

• 3, 12, 21

• -65, -73, -81

Tags

CCSS.HSF.BF.A.2

Find the 20th term in the arithmetic sequence: 5, 12, 19, 26...

• 145

• 144

• 142

• 138

Tags

CCSS.HSF.BF.A.2

Find the 25th term of the geometric sequence if the first term is 5 and the sequence is increasing by $\frac{1}{2}$ .

• 18

• 17

• 15

• 14

Tags

CCSS.HSF.BF.A.2

Find the common difference: 29, 21, 13, 5, ...

• d = -10
• d = -9
• d = -8
• d = -7

Tags

CCSS.HSF.BF.A.2

Find the next three terms of the following geometric sequence:

4, 12, 36, 108, ...

• 324, 972, 2916

• 972, 2916, 8748

• 405, 1215, 3645

• 324, 648, 1296

Tags

CCSS.HSF.BF.A.2

Write the explicit formula for the following geometric sequence:

100, 50, 25, 12.5, ...

• a_n = 2(100)^n-1

• a_n = 100(2)^n-1

• a_n = 100(1/2)^n-1

• a_n = (1/2)(100)^n-1

Tags

CCSS.HSF.BF.A.2

Find the common ratio of the following geometric sequence:

64, -16, 4, -1, ...

• r = -8

• r = -1/4

• r = -4

• r = 4

Tags

CCSS.HSF.BF.A.2

Does this graph show an arithmetic or a geometric sequence?

• Arithmetic
• Geometric
• Neither
• Both

Tags

CCSS.HSF.BF.A.2

Find a₁₂ for the geometric sequence defined by the following formula:

a_n = 6(2)^n-1

• 4096

• 24,576

• 2048

• 12,288

Tags

CCSS.HSF.BF.A.2

The number of mosquitoes at the beginning of the summer was 4,000. The population of mosquitoes is expected to grow at a rate of 25% a month. How many mosquitoes will there be after 4 months?

• 9766
• 9006
• 9765
• 5433

Tags

CCSS.HSF.BF.A.2