Arithmetic Practice

Identify the common difference. 
10, 20, 30, 40, ...

• 5
• 10
• 15
• 20

Tags

CCSS.HSF.BF.A.2

Is the sequence arithmetic?

17, 9, 1, -7, ...

• Yes

• No

Tags

CCSS.HSF.BF.A.2

Find a₂₀ in the arithmetic sequence: (Hint: Find explicit formula first)

5, 12, 19, 26...

• 145

• 144

• 142

• 138

Tags

CCSS.HSF.BF.A.2

Which sequence is NOT an arithmetic sequence?

• -7, -13, -19, -25,...

• -10, -6, -2, 2,..

• 6, 8, 10, 12,...

• 3, 15, 75, 375,...

Tags

CCSS.HSF.BF.A.2

Write the recursive formula for 6, 17, 28, 39, 50....

• a_n=a_n-1+11
  a₁=6
• a_n=a_n-1-4
  a₁=6
• a_n=a_n-1+9
  a₁=6
• a_n=a_n-1+6
  a₁=6

Tags

CCSS.HSF.BF.A.2

Given the recursive formula, find the first four terms:
a_n = a_n-1 + 5
a₁ = -16

• -16, -21, -26, -31
• 5, -11, -27, -43
• -16, -80, -500, -200
• -16, -11, -6, -1

Tags

CCSS.HSF.BF.A.2

Find the common difference.

Tags

CCSS.HSF.BF.A.2

Given an arithmetic sequence where a₃₂ = 109 and a₄₆ = 193, find a₃₁₁.

• 295
• -77
• 1860
• 1783

Tags

CCSS.HSF.BF.A.2

Which of the following equations is explicit?

• f(n) = 4n + 5
• f(n) = f(n-1) x 5

Tags

CCSS.HSF.BF.A.2

What does a₁ represent?

• Any term

• First term

• Last term

Tags

CCSS.HSF.BF.A.2