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

Find the common ratio: 64, -16, 4, -1, ...

• r = -8
• r = -1/4
• r = -4
• r = 4

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

Identify the common difference.
97, 86, 75, 64, ...

• 8
• 11
• -11
• -8

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

Find the slope:
y = 2x - 10

• 1/2
• 2
• 5
• -10

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

Given a₁= 5 and d= 2 find a₆

• 13
• 10
• 15
• 17

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

How many years will it take $4000 to double with a 5% interest rate?

• 1440
• 14.4
• 55.5
• 80

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

Evaluate the infinite geometric series:

3 - 2 + 4/3 - 8/9 + ...

• 5/4

• 9/5

• 5/6

• 65/27

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

Write the explicit formula for the sequence.

10, -2, -14, -26, ...

• $a_n=10\cdot\left(-\frac{1}{5}\right)^{\left(n-1\right)}$

• $a_n=-2\cdot7^{\left(n-1\right)}$

• $a_n=10-8\left(n-1\right)$

• $a_n=10-12\left(n-1\right)$

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

An arithmetic sequence is given below.

16, 13, 10, 7, ...

Which is the explicit formula for the n^th term a_n?

• a_n = -3n+19

• a_n = -5n+13

• a_n = 3n+13

• a_n = -5n+20

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

Q = 3.1(0.78)^t

What is the initial quantity?

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

Write an exponential function to model the situation. You invest $1500. Your investment increases at a rate of 3.5%.

• B(t) = 1500(0.965)^t

• B(t) = 1500(1.035)^t

• B(t) = 1500(.035)^t

• B(t) = 1500(1.965)^t

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