Intro To Arithmetic and Geometric Sequences

Which functions describe the sequence -5, 0, 5, 10, . . .? PICK 2

• f(1)=-10; f(n)=f(n-1)+5

• f(1)=-5; f(n)=f(n-1)+5

• f(x)=5x-10

• f(x)=5x-5

Tags

CCSS.HSF.IF.A.3

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

• 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

Tags

CCSS.HSF.BF.A.2

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

• 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

Tags

CCSS.HSF.LE.A.2

Write the first 5 terms represented by the equation f(x)=3x+2

• 2, 5, 8, 11, 14

• 5, 8, 11, 14, 17

• 3, 5, 7, 9, 11

• 2, 6, 18, 54,162

Tags

CCSS.HSF.BF.A.2

If f(x)= -9x+12, then f(20)=______________?

• -180

• 192

• -192

• -168

Tags

CCSS.HSF.IF.A.2

What kind of sequence is illustrated below?
 400, 200, 100, 50, 25, ...

• Arithmetic
• Geometric
• Neither

Tags

CCSS.HSF.BF.A.2

Which kind of sequence has a common difference?

• Arithmetic
• Geometric

Tags

CCSS.HSF.BF.A.2

What is the common ratio of the geometric sequence below?
5, 25, 125, 625...

• 25
• 20
• 5
• 4

Tags

CCSS.HSF.BF.A.2

What is the common difference of the arithmetic sequence below?
-6, -1, 4, 9...

• 5
• -5
• -6
• 1/5

Tags

CCSS.HSF.BF.A.2

What is the 8th term in the sequence below?
3, 9, 27, 81, ...

• 19,683
• 6,561
• 2,187
• 729

Tags

CCSS.HSF.BF.A.2