ALG Unit 5 MID: Lessons 7-9

Which equation has the largest growth factor?

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CCSS.HSF-IF.C.8B

Match the graph with the given situation: An Amazon stock doubles its value each fiscal quarter.

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CCSS.HSF-IF.C.7E

Match the graph with the given situation: A Facebook stock decreases its value by $20 each fiscal quarter

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CCSS.8.EE.B.5

Match the graph with the given situation: A Starbucks stock increases in value by $50 each fiscal quarter

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CCSS.8.EE.B.5

Match the graph with the given situation: A Blockbuster stocks value decreases by half each fiscal quarter.

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CCSS.HSF-IF.C.7E

New York City traditionally has an issue with rats. Starting in the year 2000 the City of New York began to take data on the rat population of a particular subway stop in Brooklyn. In the year 2000, how many rats were reported to be at the Brooklyn Train Station?

• 32

• 64

• 128

• 256

New York City traditionally has an issue with rats. Starting in the year 2000 the City of New York began to take data on the rat population of a particular subway stop in Brooklyn. Based on the table above, what is the growth factor of the rats from year to year?

• 1/2

• 1

• 2

• 3

New York City traditionally has an issue with rats. Starting in the year 2000 the City of New York began to take data on the rat population of a particular subway stop in Brooklyn.

Write an equation using the variable r to represent the rat population and x to represent the number of years.

• r(x) = 32(2)^x

• r(x) = 32(1/2)^x

• r(x) = 256(2)^x

• r(x) = 256(1/2)^x

Write an equation for this situation: An asteroid is going through the Milky Way traveling 2,000 kilometers per hour, k. The asteroid’s speed doubles every year, y.

• y = 2(2,000)^k

• y = 2,000(1/2)^k

• y = 2,000(2)^k

• y = 1/2(2,000)^k

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CCSS.HSF.LE.A.2

A colony of bacteria is currently at 35,000 bacteria b, its population decreases by 1/3 after every dose of antibiotics given, d. Write an equation that represents the amount of bacterial still alive after ever dose of antibiotics.

• b = 35,000 (2/3)^d

• d = 35,000 (2/3)^b

• b = 35,000 (1/3)^d

• d = 35,000 (1/3)^b