Section 1.1

Warm Up Graph each inequality. 1. x ≥ ≤ x ≤ 6 3. x 0

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

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

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

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 line.

Two planes intersect at a line

1.What is the intersection of plane P and R? 2.Are points F and C coplanar? 3.Are points F, D and G collinear? 4.What do the dotted lines represent?

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

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.

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

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