Algebra 1 Unit 8 EOC Review

Which function represents exponential growth?

• y = 8x

Tags

CCSS.HSF-LE.A.1A

Which function corresponds to this graph?

Tags

CCSS.HSF.LE.A.2

• Exponential growth

• Exponential decay

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CCSS.HSF-IF.C.7E

The average price of one acre of land in Marion County is currently $7245 and is increasing at annual rate of 4.2%. Which function represents the estimated price after t years?

• y = 7245 + 1.042t

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CCSS.HSF-BF.A.1A

Josh needs to invest to help with his child’s college fund. How much would he have to invest to have $76,800 after 13 years, assuming an interest rate of 2.14% annually? Round your answer to the nearest dollar.

• $50,000

• $80,000

• $65,000

• $59,163

A city’s population 358,000 and is decreasing at an annual rate of 0.25%. Which function represents the estimated population after t years?

Tags

CCSS.HSF.LE.A.2

At the beginning of scientific study, a petri dish had 2000 bacteria cells. Each hour the number of cells increased by 17%. Let t be the number of hours since the start of the study. Let y be the number of bacteria cells. Write an exponential equation showing the relationship between y and t.

• y = 2000(1.17)t

Tags

CCSS.HSF.LE.A.2

The table of ordered pairs (x, y) gives an exponential function. Write an equation for the function.

Tags

CCSS.HSF.LE.A.2

Aaron decided to take out a loan for $9000 at an interest rate of 7% compounded each year. He couldn’t make any payments for two years. How much does he owe after those two years? Round to the nearest whole dollar.

• $11,000

• $8,500

• $9,500

• $10,304

Tags

CCSS.HSF-LE.A.1C

• 5/2

• 15/2

• 3

• 0

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CCSS.HSF.LE.B.5