Reading/Interpreting Function Notation

Front

What is a function?

Back

A function is a relation where each input (x-value) has exactly one output (y-value).

Tags

CCSS.8.F.A.1

Front

How do you determine if a relation is a function?

Back

A relation is a function if no x-value is paired with more than one y-value.

Tags

CCSS.8.F.A.1

Front

What does g(x) represent in function notation?

Back

g(x) represents the output of the function g for a given input x.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

What does it mean to evaluate a function at a specific value, such as g(9)?

Back

To evaluate g(9), substitute 9 for x in the function g(x).

Tags

CCSS.HSF.IF.A.2

Front

What is the coordinate point for g(15) = -1?

Back

The coordinate point is (15, -1).

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

How do you read the notation f(x)?

Back

It is read as 'f of x'.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

What is the vertical line test?

Back

The 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.

Front

What is the domain of a function?

Back

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

Front

What is the range of a function?

Back

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

Front

If f(x) = 3x + 2, what is f(4)?

Back

f(4) = 3(4) + 2 = 14.

Tags

CCSS.HSF.IF.A.2