Quiz #1 (Arith and Geo Seq and Series) 11th - 12th Grade Quiz

Quiz #1 (Arith and Geo Seq and Series)

Assessment

•

Hector Quintana

•

Mathematics

•

11th - 12th Grade

•

4 plays

•

Easy

Student preview

23 questions

Show answers

1.

Multiple Choice

3 mins

1 pt

Find the 25th term of the sequence if a₁ = 5 and d = 0.5

18

17

15

14

2.

Multiple Choice

3 mins

1 pt

Given the sequence:
25, 21, 17, 13,...
Write the explicit equation that models the sequence. (Hint: Simplify your equation.)

a_n = 4n + 29

a_n = -4n + 25

a_n= -4n + 29

a_n = 4n + 25

3.

Multiple Choice

3 mins

1 pt

Write an explicit rule for the general term of the sequence 5, 15, 45, . . . ?

a_n = a_n-1 x 3

a_n = 5(3)^n-1

a_n = 3(5)^n-1

a_n = 5 + (n-1)3

4.

Multiple Choice

2 mins

1 pt

Which recursive formula best describes the sequence
2, -6, 18, - 54...

a_n=a_n-1* -4, a₁= 2

a_n=a_n-1* - 8, a₁=2

a_n=a_n-1* 2, a₁= -3

a_n=a_n-1* -3, a₁=2

5.

Multiple Choice

3 mins

1 pt

Evaluate the geometric series below:
4 + 20 + 100 + 500..., S₇

88419

78124

91846

92234

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