Day 63 - 8.PFA.2 Domain & Range

Front

What is the definition of '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 '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

How do you determine the domain of a set of ordered pairs?

Back

To determine the domain of a set of ordered pairs, list all the unique x-values from the pairs.

Front

How do you determine the range of a set of ordered pairs?

Back

To determine the range of a set of ordered pairs, list all the unique y-values from the pairs.

Front

What is the domain of the relation {(1, 2), (3, 4), (5, 6)}?

Back

The domain is {1, 3, 5}.

Front

What is the range of the relation {(1, 2), (3, 4), (5, 6)}?

Back

The range is {2, 4, 6}.

Front

If a function is defined as f(x) = x^2, what is the domain?

Back

The domain is all real numbers, or (-∞, ∞).

Front

If a function is defined as f(x) = 1/x, what is the domain?

Back

The domain is all real numbers except x = 0, or (-∞, 0) U (0, ∞).

Front

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

Back

The range is all non-negative real numbers, or [0, ∞).

Front

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

Back

The range is all non-positive real numbers, or (-∞, 0].