Day 64 8.PFA.2 - Domain & Range Warm-up

Front

What is the definition of a domain in a relation?

Back

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

Front

What is the definition of a range in a relation?

Back

The range of a relation is the set of all possible output values (y-values) that result from the input values in the domain.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

Given the relation {(1, 3), (2, 5), (3, 7)}, what is the domain?

Back

The domain is {1, 2, 3}.

Front

Given the relation {(1, 3), (2, 5), (3, 7)}, what is the range?

Back

The range is {3, 5, 7}.

Front

How do you determine the domain of a function from a graph?

Back

To determine the domain from a graph, identify the x-values that the graph covers.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Front

How do you determine the range of a function from a graph?

Back

To determine the range from a graph, identify the y-values that the graph covers.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Front

What is the domain of the function f(x) = 1/x?

Back

The domain is all real numbers except x = 0.

Front

What is the range of the function f(x) = x^2?

Back

The range is all real numbers greater than or equal to 0.

Front

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

Back

A relation is a function if each input (x-value) is associated with exactly one output (y-value).

Tags

CCSS.8.F.A.1

Front

What is the domain of the relation {(2, 0), (4, 0), (6, 0), (8, 0)}?

Back

The domain is {2, 4, 6, 8}.