Ordered pairs

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 in the form (x, y).

Front

What does the first number in an ordered pair represent?

Back

The first number in an ordered pair represents the x-coordinate, which indicates the horizontal position on the coordinate plane.

Front

What does the second number in an ordered pair represent?

Back

The second number in an ordered pair represents the y-coordinate, which indicates the vertical position on the coordinate plane.

Front

How do you plot an ordered pair on a coordinate plane?

Back

To plot an ordered pair (x, y), start at the origin (0, 0), move x units along the x-axis, and then move y units up or down along the y-axis.

Front

What is the coordinate of point A if it is located 3 units right and 4 units up from the origin?

Back

The coordinate of point A is (3, 4).

Front

If a point has coordinates (0, 0), what is this point called?

Back

This point is called the origin.

Front

What is the ordered pair for point B located at 5 units left and 2 units down from the origin?

Back

The ordered pair for point B is (-5, -2).

Front

What is the significance of the order of numbers in an ordered pair?

Back

The order of numbers in an ordered pair is significant because (x, y) is different from (y, x); the first number always represents the x-coordinate.

Front

What is the ordered pair for point C located at 2 units right and 3 units down from the origin?

Back

The ordered pair for point C is (2, -3).

Front

How can you determine if two ordered pairs are the same point on a coordinate plane?

Back

Two ordered pairs are the same point if both their x-coordinates and y-coordinates are identical.