10/23 Lesson 11-3 Arithmetic Sequences as Functions

Use the arithmetic sequence 1, 4, 7, 10,…. What is the common difference?

• 3

• 1

• 13

• -2

Use the arithmetic sequence 1, 4, 7, 10,…. What is the nth term of the sequence?

• $a_n=3n-2$

• $a_n=3n$

• $a_n=-3n-2$

• $a_n=3n+2$

What ordered pair represents the nth term of the arithmetic sequence 1, 4, 7, 10,…. ?

• (n, 3n -2)

• (n, 3n)

• (3n - 2, n)

• (3n, 3n - 2)

Using the function

 $f\left(n\right)=3n-2$  what is  $f\left(12\right)$  ?

• 34

• 43

• 36

• 27

Use the arithmetic sequence 11, 23, 35, 47,…. What is  $f\left(5\right)$  ?

• 59

• 60

• 66

• 47

Use the arithmetic sequence 11, 23, 35, 47,…. What is the function ?

•  $f\left(n\right)=12x-1$  
  

•  $f\left(n\right)=12x$  
  

•  $f\left(x\right)=11x-11$  
  

•  $f\left(x\right)=-12x-1$  

Using the function

 $f\left(n\right)=12n-1$  what is  $f\left(12\right)$  ?

• 143

• 144

• 11

• 24

Using the function

 $f\left(n\right)=12n-1$  what is  $f\left(100\right)$  ?

• 1199

• 9911

• 1200

• 12200

Use the arithmetic sequence 6.5, 9, 11.5, 14,…. What is the function?

•  $f\left(n\right)=2.5x+4$  
  

•  $f\left(n\right)=6.5x$  

•  $f\left(n\right)=2.5x$  
  

•  $f\left(x\right)=4x+2.5$  
  

Using the function

 $f\left(n\right)=2.5x+4$  what is  $f\left(10\right)$  ?

• 29

• 92.5

• 47.5

• 25