Arithmetic Sequences

Which formula is this?  $a_n=a_{\left(n-1\right)}+d$  

• Recursive Formula

• Explicit Formula

Tags

CCSS.HSF.BF.A.2

 $a_{1\ }$  stands for: 

• common difference

• zero term

• the first term in the sequence

• the nth term you are looking for

Tags

CCSS.HSF.BF.A.2

What formula is this?  $a_n=a_1+\left(n-1\right)d$  

• Recursive 

• Explicit

 $d$  stands for: 

• the nth term you are looking for

• common difference

• the zero term

• the first term in the sequence

Tags

CCSS.HSF.BF.A.2

When asking for an answer to be put into RECURSIVE form, which is the proper way to answer?

• $a_1=$

• $a_n=a_{\left(n-1\right)}+d\ \ \ \ \ \ \ \ \ \ \ a_1=\ \$

• $d=$

• $a_n=a_1+\left(n-1\right)d$

Write the sequence in RECURSIVE FORM: 4, 10, 16, 22, 28

•  $a_n=6n-2$  

•  $a_1=6$   $a_n=a_{\left(n-1\right)}+4$  

•  $a_1=4$   $a_n=a_{\left(n-1\right)}+6$  

•  $d=6$  

Tags

CCSS.HSF.BF.A.2

What is the common difference in this sequence?

3, 10, 17, 24, 31

• 
  

  $d=3$
  

• $d=-4$

• $d=4$

• $d=7$

Tags

CCSS.HSF.BF.A.2

Write the following in the EXPLICIT Form

3, 15, 27, 93

• 
  

  $a_n=a_{\left(n-1\right)}+12$
  

• $a_1=3$

• $a_n=-9+12n$

• $a_n=12n+3$

What is the next term in the sequence:

5, 10, 15, 20, 25...

• 40

• -5

• 5

• 30

Tags

CCSS.2.NBT.A.2

What are the next 3 terms in the sequence: 2, 8, 14, 20...

• 25, 30, 35

• 26, 32, 38

• -4, -10, -16

• 0, 0, 0

Tags

CCSS.HSF.BF.A.2