Identifying Functions Practice

Front

What is a function?

Back

A function is a relation that assigns exactly one output for each input.

Tags

CCSS.8.F.A.1

Front

What is the definition of inputs in a function?

Back

Inputs are the x-values in a function, representing the values that are fed into the function.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

What is the definition of outputs in a function?

Back

Outputs are the y-values in a function, representing the results obtained from the function.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

What does it mean for a relation to be a function?

Back

A relation is a function if no two ordered pairs have the same first element (x-value).

Tags

CCSS.8.F.A.1

Front

Identify if the following is a function: {(1,2), (2,3), (3,4)}

Back

This is a function because each x-value is unique.

Tags

CCSS.8.F.A.1

Front

Identify if the following is a function: {(1,2), (1,3), (2,4)}

Back

This is not a function because the x-value '1' is repeated with different y-values.

Tags

CCSS.8.F.A.1

Front

What is the range of a function?

Back

The range is the set of all possible output values (y-values) of a function.

Front

What is a set of ordered pairs?

Back

A set of ordered pairs is a collection of pairs (x,y) that represent the relationship between inputs and outputs.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

Which of the following is a function? {(1,2), (2,3), (2,4)}, {(3,4), (4,5), (5,6)}

Back

{(3,4), (4,5), (5,6)} is a function because all x-values are unique.

Tags

CCSS.8.F.A.1

Front

What is a vertical line test?

Back

A vertical line test is a method to determine if a graph represents a function; if a vertical line intersects the graph at more than one point, it is not a function.