Function Notation

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CCSS.HSF.IF.A.2

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CCSS.HSF.IF.A.2

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CCSS.HSF.IF.A.2

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CCSS.HSF.IF.A.2

Use function notation to represent each statement.

The amount of rain 90 minutes after it started raining was the same as the amount 120 minutes after it started raining.

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CCSS.HSF.IF.A.2

Function f gives the temperature, in Celsius, t hours after midnight. Use function notation to write an equation or expression for each statement. The temperature was the same at 9 a.m. and at 4 p.m.

• f(9) = f(4)

• f(9) = f(16)

• f(9) = 4

• f(9) = 16

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CCSS.HSF.IF.A.2

If g(x) = 6(-8x + 12) + 7, what is the value of g(6)?

Mathematical Equivalence

ON

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CCSS.HSF.IF.A.2

Function f gives the temperature, in Celsius, t hours after midnight. Use function notation to write an equation or expression for each statement. The temperature was the same at 9 a.m. and at 4 p.m.

• f(9) = f(4)

• f(9) = f(16)

• f(9) = 4

• f(9) = 16

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CCSS.HSF.IF.A.2

What does f(1990)=214 mean in the context of the problem?

• In 1990 there were 214 million people with health insurance

• In 214, there were 1990 people with health insurance

• When there are 1990 people, the year is 214

• None of these

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CCSS.HSF.IF.A.2

The function d(x) where x=gallons of gas and d(x)= # of miles traveled.
Interpret d(8)=300 in context.

• A car with 8 gallons of gas can travel 300 miles.

• A car traveling 8 miles has 300 gallons of gas.

• A car is traveling 300 miles.

• The car traveling 8 mph can go 300 miles.

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CCSS.HSF.LE.B.5