CCSS.Math.Content.HSF.LE.A.2

Given the sequence:
 25, 21, 17, 13,...
Write the explicit equation that models the sequence.

• a_n = 4n + 29
• a_n = -4n + 25
• a_n = -4n + 29
• a_n = 4n + 25

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CCSS.Math.Content.HSF.LE.A.2

Find the next three terms in the arithmetic sequence: -3, -8, -13, -18, ...

• -20, -24, -28
• -21, -25, -29
• -23, -28, -33
• -24, -29, -32

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CCSS.Math.Content.HSF.LE.A.2

The population of turtles is doubling every 3 months.  If there are 400 turtles now, how many will there be in 2 years?  (Choose equation)

• y = 400(2)²
• y = 400(2)⁶
• y = 400(2)⁸
• y = 400 + 2(8)

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CCSS.Math.Content.HSF.LE.A.2

The common difference of the Arithmetic Progression 0.2, -0.3, -0.8, ..... is 

• 0.3
• 0.5
• -0.5
• -0.2

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CCSS.Math.Content.HSF.LE.A.2

Is the sequence geometric? If so, identify the common ratio.

6, 12, 24, 48

• yes, 2

• yes, -2

• yes, 4

• no

Tags

CCSS.Math.Content.HSF.LE.A.2

Find the common ratio for the geometric sequence.

• 2
• -2
• 1/2
• -1/2

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CCSS.Math.Content.HSF.LE.A.2

Which of the following recursive formulas represents the given sequence.

7, 14, 28, 56, 112, ...

• $a_1=7$ , $a_n=a_{\left(n-1\right)}+7$

• $a_1=7$ , $a_n=a_{\left(n-1\right)}\cdot7$

• $a_1=7$ , $a_n=a_{\left(n-1\right)}\cdot2$

• $a_1=7$ , $a_n=a_{\left(n-1\right)}+14$

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CCSS.Math.Content.HSF.LE.A.2

 $a_n=a_1r^{n-1}$  

Given the formula for a geometric sequence , r stands for

• common difference

• wanted term

• common ratio

• first term

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CCSS.Math.Content.HSF.LE.A.2

Becca wants her money to double in 6 years. What interest rate will she need?

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CCSS.Math.Content.HSF.LE.A.2

Sydney wants her money to double in 4 years. What interest rate will she need?

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CCSS.Math.Content.HSF.LE.A.2