Domain and Range

Front

What is the definition of Domain in a function?

Back

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

Front

What is the definition of Range in a function?

Back

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

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Front

Given the function points (0,1), (1,-3), (2,-4), (-4,1), what is the domain?

Back

{-4, 0, 1, 2}

Front

Given the function points (0,1), (1,-3), (2,-4), (-4,1), what is the range?

Back

{-4, -3, 1}

Front

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

Back

Each input (x-value) must have exactly one output (y-value).

Tags

CCSS.8.F.A.1

Front

Is the relation {(1,2), (1,3), (2,4)} a function? Why?

Back

No, because the x-value 1 has two different y-values (2 and 3).

Tags

CCSS.8.F.A.1

Front

Identify the domain of the relation {(0,1), (2,3), (4,5)}.

Back

{0, 2, 4}

Front

Identify the range of the relation {(0,1), (2,3), (4,5)}.

Back

{1, 3, 5}

Front

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

Back

All real numbers.

Front

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

Back

All non-negative real numbers (y ≥ 0).