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 I Quadrant II X-axis Quadrant IV Quadrant III

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

The Ordered Pair (5,10) X- coordinate Y- coordinate

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 positive move this way If the x-coordinate is negative move this way X-axis

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

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

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

y x 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) Plot the Points y { 3, 4, -3, 0, -4} 2) State the range. x { -2, 1, -4, 2, 0 }

Homework Worksheet 4.1 Review 2.1, 2.2, 2.3, 2.4, 2.6 and 4.1 for quiz on Monday!