Vocabulary Words Axes two perpendicular number lines used

Vocabulary Words Axes - two perpendicular number lines used for locating points Origin – the intersection of the two axes Y-axis – the vertical number line X-axis – the hoizontal number line

The four quadrants of the coordinate plane. Y-axis Quadrant II Quadrant I X-axis Quadrant III Quadrant IV

Signs of the quadrants. Y-axis (-, +) (+, +) X-axis (-, -) (+, -)

The Ordered Pair (5, 10) Xcoordinate Ycoordinate

The Origin Point Y-axis Origin Point (0, 0) X-axis

• Always start at the origin to plot a point.

Direction of Movement for the X-Coordinate Y-axis If the x- coordinate is negative move this way If the x- coordinate is positive move this way X-axis

Direction of movement for the Y-coordinate Y-axis If the y- coordinate is negative move this way If the y- coordinate is positive move this way X-axis

Name the given point. Y-axis (-2, 1) (1, 3) X-axis (-5, -1) (4, 0)

How To Plot a Point on the Coordinate Plane Y-axis (4, 4) Next move on the Yaxis (-3, -1) X-axis First move out on the X-axis

Ordered Pairs Domain - set of x-values. Range - set of y-values. { (3, -2), (4, 1), (-3, -4), (0, 2), (-4, 0) } 1) State the domain. { 3, 4, -3, 0, -4} 2) State the range. { -2, 1, -4, 2, 0 } 3) Plot the Points y x

Homework • Worksheet 4. 1 • Review 2. 1, 2. 2, 2. 3, 2. 4, 2. 6 and 4. 1 for quiz on Monday!