1. Plotting in 3-D
Section 7.1.1

2. Learning Targets Visualize points in a 3-D coordinate system
Give the coordinates of points in a 3-D coordinate system

3. Up To Now… Only graphed or plotted on 1-D or 2-D coordinate systems
Single variable equations and points are plotted on a 1-D number line
Two variable equations and points are plotted on 2-D coordinate systems
Ex: 3x=15 (Single Variable Equation)
Ex: y = 3x + 5 (Two Variable Equation)
Ex: (3,4) (Point in a 2-D coordinate system)

4. What is the Difference
Drawing Dimensions

5. Construct a 3-D Coordinate System
Use the cut-out to construct a coordinate system

6. Labeling Points Where is the point x=3, y=2, z=1?
How do you propose we write the coordinates for this point or any point in a 3-D system?
(3,2,1) y x z

7. Practice I am going to roll the dice and get three points.
I want you to write the coordinate’s for this point and locate where it is in the 3-D coordinate system

8. Upcoming Topics Graphing Three Variable Equations
Solving Systems of Three Variable Equations
Algebraically
Matrices

9. For the Weekend
Homework:
Review and Preview
Page 309
7-9 through 7-15