Lesson 13 Vocabulary

Two ratios that express the same comparison are

• equivalent ratios

• coordinate planes

• ordered pair

• ratios

Two-dimensional space formed b two perpendicular number lines called axes

• x-axis

• coordinate plane

• ordered pair

• y-axis

A pair of numbers (x,y) that describes the location of a point in the coordinate plane

• x-axis

• coordinate plane

• ordered pair

• y-axis

The horizontal number line in the coordinate plane

• x-axis

• x-coordinate

• y-coordinate

• y-axis

The vertical number line in the coordinate plane

• x-axis

• x-coordinate

• y-coordinate

• y-axis

The first number in an ordered pair. It tells the point’s horizontal distance from the y-axis.

• x-axis

• x-coordinate

• y-coordinate

• y-axis

The second number in an ordered pair. It tells the point’s vertical distance from the x-axis.

• x-axis

• x-coordinate

• y-coordinate

• y-axis