Exponential Versus Linear

The iPhone X is valued at $1000 upon purchase. The value is expected to decrease by 14% each year. What type of function is this?

• Linear 

• Exponential 

• Neither 

What type of function describes the story below?
You have $5 and triple your money every day. 

• Linear

• Exponential

• Neither

Which scenario is an example of exponential decay?

• The population of a city increases by 2,000 people each year.

• The amount of a radioactive substance decreases by half every century.

• The height of a plant increases by 5 cm each month.

• The number of cars in a parking lot increases by 20 cars each hour.

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CCSS.HSF-LE.A.1A

Uber charges an initial fee of $2 plus $0.75 per mile. What type of function is this?

• Linear 

• Exponential 

• Neither 

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CCSS.8.F.A.3

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CCSS.HSF.LE.A.2

Which represents an exponential function?

• Finding the total of a bill

• Finding the increase in height of a person

• The sum of two integers

• Bacteria doubling on a counter surface

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CCSS.HSF-LE.A.1A

Is the situation linear or exponential?

• Linear Situation

• Exponential Situation

A child asks her dad for an allowance that starts with a penny and then doubles every day for a month. Which function can be used to model the amount of money, A, the child will receive each day, x?

• A(x) = 2(0.01)^x

• A(x) = 0.01(2)^x

• A(x) = 0.01(1 - 2)^x

• A(x) = 2(1.01)^x

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CCSS.HSF.LE.A.2

What is the general form of an exponential equation?

• y = a + b^x

• y = a * b^x

• y = a * b + x

• y = a * b^x + c

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CCSS.HSF.LE.A.2

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