Functions, Functions, Functions

Front

What is a function?

Back

A function is a relation between a set of inputs and a set of possible outputs where each input is related to exactly one output.

Tags

CCSS.8.F.A.1

Front

What is the domain of a function?

Back

The domain is the set of all possible input values (x-values) for a function.

Front

What is the range of a function?

Back

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

Front

What does the vertical line test determine?

Back

The vertical line test determines if a graph represents a function. If a vertical line intersects the graph at more than one point, it is not a function.

Front

What is an independent variable in a function?

Back

The independent variable is the input value (x) that can be changed freely.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

What is a dependent variable in a function?

Back

The dependent variable is the output value (y) that depends on the input value.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

What is a mapping in relation to functions?

Back

A mapping shows how each input is paired with an output. It can be a function or not a function.

Tags

CCSS.8.F.A.1

Front

What is a relation?

Back

A relation is any set of ordered pairs, but it is not necessarily a function.

Tags

CCSS.8.F.A.1

Front

What is the difference between a function and a non-function?

Back

A function has exactly one output for each input, while a non-function may have multiple outputs for a single input.

Tags

CCSS.8.F.A.1

Front

What is an example of a function?

Back

An example of a function is f(x) = 2x + 3, where each x value has a unique y value.

Tags

CCSS.8.F.A.1