1. The Coordinate System and Descriptive Geometry
How it relates to Inventor

2. Topic Defined What is a Coordinate System What is Descriptive Geometry
Coordinates are a set of values that show an exact position on an x and y plane. The first number shows the distance horizontally and the second number shows the distance vertically up or down.
Descriptive geometry is a representation of three-dimensional objects in two dimensions, by using a specific set of procedures, using the x, y and z planes. The techniques are important for engineering, architecture, design and in art.

3. Axis used in the Coordinate System
The y-axis
Will always be a vertical line.
X- axis
Will always be a horizontal line.

4. Quadrants in the Coordinate System
X is negative
Y is positive
(-x, y)
Quadrant 1
X is positive
Y is positive
(x, y) X
Quadrant 3
X is negative
Y is negative
(-x, -y)
Quadrant 4
X is positive
Y is negative
(x, -y)

5. Plotting Point on the Coordinate System
PLOT THE POINTS
5 , 1
-5 , 5
-3 , -2
1 , -3 X

6. Plot the Point for each object

7. Descriptive Geometry
Is a 3D object on a 2D surface.

8. Coordinate System for Descriptive Geometry

9. Continue working on handout

10. Conclusion What is the purpose of the coordinate system?
Shows a point on a plane at its exact position using the x and y coordinates.
How does the Z-axis relate to the X and Y axis?
X-axis shows width of an object.
Y-axis shows height of an object.
Z-axis shows depth of an object.