Arithmetic Sequences

Front

Identify the common difference in the sequence: 10, 20, 30, 40, ...

Back

10

Front

Is the sequence arithmetic? 17, 9, 1, -7, ...

Back

Yes

Front

Given the sequence:
 25, 21, 17, 13,...
Write the explicit equation that models the sequence.

Back

a_n = 25 - 4(n-1)

Front

Is the sequence arithmetic? 78, 785, 7855, 78555, ...

Back

No

Front

Which sequence is NOT an arithmetic sequence?

-7, -13, -19, -25,...

,

-10, -6, -2, 2,..

,

6, 8, 10, 12,...

,

3, 15, 75, 375,...

Back

3, 15, 75, 375,... is not an arithmetic sequence.

Front

Find the explicit formula for the n^th term a_n of the arithmetic sequence: 2, 9, 16, 23, ...

Back

a_n = 2 + 7(n-1)

Front

The next two terms of the sequence 4, 7, 10, 13 are...

Back

16 and 19

Front

Equation for sequence: 6, 11, 16, 21, . . .

Back

a_n = 6 + 5(n - 1)

Front

Identify the common difference.
3, 7, 11, 15, ...

Back

4

Front

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

Back

17