4. 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

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

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

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

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

9. Always start at the origin to plot a point.

10. 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

11. 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

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

13. 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

14. 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 }

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