Name ______________________________
© 2007, A. Azzolino www.mathnstuff.com/math/algebra/copix/fifth.htm
Coordinates, numbers stated in a specific order, name places -- on paper, on earth, in space. The abscissa (left-right) come first and the ordinate (up-down) come next. For example, the point (2, 4) is 2 spaces to the right and 4 spaces up.

The numbers originate, start, where the two number lines cross, the point called the origin. The horizontal number line or x-axis goes from left to right. The vertical number line or y-axis goes up and down.

Notice on each number line that there are positive numbers on one side and negative numbers on the other. The origin has coordinates which are the boundary between negative and positive. The origin has the coordinates (0,0).
Complete.
1. The horizontal number line is called the ________________________.
2. The vertical number line is called the __________________________.
3. The point where the number lines cross at right angles ( perpendicular) is called _______.
4. Using coordinates, (left-right, up-down), name the points on the above plane.
 A. ________ B. __________ C. __________ D. __________ E. ________ F. __________ G. __________ the origin __________
5. IN ORDER, on the above plane, draw these 4 connect-the-points pictures.
Start at the first point, draw a line from there to the 2nd point, and so on through to each point, to the ending point.
H. (-3,1) to (-5,2) to (-6,4) to (-4,5) to (-3, 4) to (-2,5) to (0,4) to (-3,1)
I. (0,-3) to (-2,-5) to (-4,-3) to (-3,-2) to (-2,-3) to (-1,-2) to (0,-3)
J. (4,3) to (5,4) to(5,5) to (4, 4.5) to (3,5) to (3,4) to (4,3) to (4, -3) to (2,2) to (3,1) to (4,-3)
K. (6,1) to (7,2) to (7,3) to (6, 2.5) to (5,3) to (5,2) to (6,1) to (6,-3) to (7, -2) to (7, -1) to (6, -3)
See the answers here.