Exponential Functions Review STAAR

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CCSS.8.F.A.1

CCSS.HSF.IF.B.5

The table shows the value in dollars of a boat at the end of x years. Which exponential function best models the data?

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AI.9.9.C

The value of a stamp collection is currently is $2,750. It increases on average by about 1.75% each year. Write a function to model the value of the stamp collection after x number of years.

(write equation in y= form)

Mathematical Equivalence

ON

Answer explanation

Remember, when you'e given the percent rate, change the percent to decimal then add to 1 if it increases. Subtract from 1 if it decreases.

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AI.9.9.C

• {52,105}

• {3,4,5,6}

• {52,72, 86,105}

• {3,4,5,6,52,72,86,105}

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CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which function is best represented by this graph?

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CCSS.HSF.LE.A.2

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• The interest the savings account earned for the first year

• The annual interest rate of the savings account

• The number of years the savings account has earned interest

• The starting balance of the savings account

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CCSS.HSF.LE.B.5

In this exponential function, the range approaches zero but never includes it. What is the range?

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CCSS.HSF-IF.C.7E

Which graph represents the function?

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CCSS.HSF-IF.C.7E

Which equation matches the graph?

• y = 2^x+3

• y = 2^x + 3

• y = 2^x

• y = 2^-x

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CCSS.HSF.LE.A.2