1. The Coordinate Plane
Section 1.1

2. Warm Up 1. x ≥ 3 2. 2 ≤ x ≤ 6 3. x < 1 OR x > 0
Graph each inequality.
1. x ≥ 3
2. 2 ≤ x ≤ 6
3. x < 1 OR x > 0

3. y
Quadrant 1
Quadrant 2 x
Quadrant 3
Quadrant 4
A point on the coordinate plane is called an

4. Points A, B and C are on the same line. Therefore, they are called
Points A, B, C, D and E are not on the same line. Therefore they are called

5. Points, Lines and Planes
A dot is called a
A point must be written with a capital letter.
Two or more collinear points make up a
A line is named by any ____ points on that line or by the lower case script letter.
Two lines intersect at a

6. Two or more lines, make up a
Points in the same plane are called _________.
A plane is a flat surface that extends indefinitely in all directions.
A plane can be named by a capital script letter or by any _____ non-collinear points on the plane.
Two planes intersect at a ________.

7. Two planes intersect at a line

8. What is the intersection of plane P and R?
Are points F and C coplanar?
Are points F, D and G collinear?
What do the dotted lines represent?

14. A. Name four coplanar points.
B. Name three lines.

15. Draw and label each of the following.
A. a segment with endpoints M and N.
B. opposite rays with a common endpoint T.
C. Draw and label a ray with endpoint M that contains N.

16. 3. The intersection of plane N and plane T.
Section Quiz
1. Two opposite rays.
2. A point on BC.
3. The intersection of plane N and plane T.
4. A plane containing E, D, and B.

17. Draw each of the following.
5. a line intersecting a plane at one point
6. a ray with endpoint P that passes through Q