3-1: Relations

Front

The first number in an ordered pair is...

Back

the x-coordinate.

Front

In the relation {(-1,2), (-2,4), (2,5), (0,-2), (2,0)}, what domain value corresponds to the range value -2?

Back

0

Front

The plane containing the x-axis and the y-axis is the...

Back

coordinate plane.

Front

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

Back

D:{-4, 0, 1, 2} R:{-4, -3, 1}

Front

What is the domain of the graph represented by the points?

Back

D = {-5, -3, 2 }

Front

What is a relation in mathematics?

Back

A relation is a set of ordered pairs.

Front

What is the range of a relation?

Back

The range is the set of all second elements (y-values) in the ordered pairs.

Front

What does the term 'domain' refer to in a relation?

Back

The domain refers to the set of all first elements (x-values) in the ordered pairs.

Front

How do you identify the x-coordinate from an ordered pair (x,y)?

Back

The x-coordinate is the first number in the ordered pair.

Front

What is an ordered pair?

Back

An ordered pair is a pair of numbers used to locate a point on a coordinate plane, written as (x, y).