Understanding Functions in Math

What does the word 'function' mean in a general non-mathematical context?

• A specific type of number

• What something does

• A rule in programming

• A type of mathematical equation

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What is a 'set' in mathematics?

• A mathematical operation

• A type of function

• A collection of various items

• A single number

Can a set contain an infinite number of elements?

• Yes, like the set of all integers

• No, all sets are finite

• Only if it contains numbers

• Only in theoretical mathematics

What can elements of a set be?

• Only numbers

• Only letters

• Only geometric shapes

• Numbers, letters, or other items

What is the 'domain' of a function?

• The input set

• The set of all possible outputs

• The rule of the function

• The output set

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What is the 'range' of a function?

• The set of all possible outputs

• The graphical representation

• The mathematical rule used

• The set of all possible inputs

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CCSS.8.F.A.1

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How does a function relate to sets?

• It subtracts one set from another

• It finds the average of sets

• It maps each element of one set to another

• It combines sets into one

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CCSS.8.F.A.1

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What does a function table display?

• Graphs of functions

• Equations only

• Definitions of mathematical terms

• Input and corresponding output values

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What might you find in a function table?

• Puzzles and games

• Graphs and charts only

• Columns for input and output values

• The history of functions

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What is an example of a simple function rule?

• Find the volume of a cube

• Determine the perimeter of a square

• Calculate the area of a circle

• Output the number of sides of a shape

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CCSS.8.F.A.1

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