geometric and arithmetic sequences

Front

Which EXPLICIT function describes the sequence 3, 7, 11, 15, ...? Options:

f(1)=3; f(n)=f(n-1)+4

,

f(1)=4; f(n)=f(n-1)+3

,

f(x)=3x+4

,

f(x)=4x-1

Back

f(x)=4x-1

Front

Which EXPLICIT function describes the sequence 500, 250, 125, ... ?

Options:

f(1)= 500; f(n)=f(n-1)*1/2

,

f(x)=1000(1/2)^x

,

f(x)=1000(2)^x

,

f(1)=500; f(n)=f(n-1)*2

Back

f(x)=1000(1/2)^x

Front

Classify the sequence: {26, 22, 18, 14, ...}

Back

Arithmetic

Front

Classify the sequence: {2, 9, 7, 14, 12, 19, ... }
Options: Arithmetic, Geometric, Neither

Back

Neither

Front

What is the 38th term of this sequence?
{26, 22, 18, 14, ... }

Back

-122

Front

What is the common difference in this sequence?
{48, 32, 16, 0, ... }

Back

-16

Front

Find the 10th term of this sequence:
{96, 48, 24, 12, ... }

Back

3/16

Front

Dividing by 5 is the same as...

Back

× 1/5

Front

First three terms of the sequence defined by a_n = 7 + (n - 1)5

Back

7, 12, 17

Front

Arithmetic sequence: 5, 2, –1, –4, . . . Find a₇.

Back

-13