Download presentation

Presentation is loading. Please wait.

Published byJeremiah Ellis Modified over 3 years ago

1
3.5 Graphs in Three Dimensions 2.Graphing Equations in Three Dimensions

2
2) Graphing Equations in Three Dimensions The graph of a 3D equation is a plane in 3- dimensional space. x -x y -y z -z

3
2) Graphing Equations in Three Dimensions It is difficult to draw planes, so instead we draw traces. A trace is a line that passes through two intercepts. x -x y -y z -z

4
2) Graphing Equations in Three Dimensions It is difficult to draw planes, so instead we draw traces. A trace is a line that passes through two intercepts. x -x y -y z -z

5
2) Graphing Equations in Three Dimensions It is difficult to draw planes, so instead we draw traces. A trace is a line that passes through two intercepts. x -x y -y z -z yz-trace xy-trace xz-trace Crosses the y- and z- axes Crosses the x- and z- axes Crosses the x- and y- axes

6
To draw a trace, we need to know the x, y and z intercepts. Example 1: Sketch the graph of x + y + z = 5. 2) Graphing Equations in Three Dimensions

7
Example 1: Sketch the graph of x + y + z = 5. x-intercept: y = 0, z = 0 x + 0 + 0 = 5 x = 5 2) Graphing Equations in Three Dimensions

8
Example 1: Sketch the graph of x + y + z = 5. y-intercept: x = 0, z = 0 0 + y + 0 = 5 y = 5 2) Graphing Equations in Three Dimensions

9
Example 1: Sketch the graph of x + y + z = 5. z-intercept: x = 0, y = 0 0 + 0 + z = 5 z = 5 2) Graphing Equations in Three Dimensions

10
Example 1: Sketch the graph of x + y + z = 5. x-intercept = 5 y-intercept = 5 z-intercept = 5 2) Graphing Equations in Three Dimensions

11
Example 1: Sketch the graph of x + y + z = 5. x-intercept = 5 y-intercept = 5 z-intercept = 5 2) Graphing Equations in Three Dimensions x -x y -y z -z (0, 0, 5) (0, 5, 0) (5, 0, 0)

12
Example 1: Sketch the graph of x + y + z = 5. x-intercept = 5 y-intercept = 5 z-intercept = 5 2) Graphing Equations in Three Dimensions x -x y -y z -z (0, 0, 5) (0, 5, 0) (5, 0, 0)

13
Example 2: Sketch the graph of 2x – y + 3z = 6. 2) Graphing Equations in Three Dimensions

14
Example 2: Sketch the graph of 2x – y + 3z = 6. x-int 2x – 0 + 3(0) = 6 2x = 6 x = 3 2) Graphing Equations in Three Dimensions

15
Example 2: Sketch the graph of 2x – y + 3z = 6. x-int y-int 2x – 0 + 3(0) = 62(0) – y + 3(0) = 6 2x = 6 -y = 6 x = 3 y = -6 2) Graphing Equations in Three Dimensions

16
Example 2: Sketch the graph of 2x – y + 3z = 6. x-int y-int z-int 2x – 0 + 3(0) = 62(0) – y + 3(0) = 6 2(0) – 0 + 3z = 6 2x = 6 -y = 6 3z = 6 x = 3 y = -6 z = 2 2) Graphing Equations in Three Dimensions

17
Example 2: Sketch the graph of 2x – y + 3z = 6. x-int = 3 y-int = -6 z-int = 2 2) Graphing Equations in Three Dimensions x -x y -y z -z (0, 0, 2) (3, 0, 0) (0, -6, 0)

18
Example 2: Sketch the graph of 2x – y + 3z = 6. x-int = 3 y-int = -6 z-int = 2 2) Graphing Equations in Three Dimensions x -x y -y z -z (0, 0, 2) (3, 0, 0) (0, -6, 0)

19
Example 2: Sketch the graph of 2x – y + 3z = 6. x-int = 3 y-int = -6 z-int = 2 2) Graphing Equations in Three Dimensions x -x y -y z -z (0, 0, 2) (3, 0, 0) (0, -6, 0)

20
Homework p.149 #21-23, 30, 31, 33, 37-40 QUIZ TOMORROW: 3.1, 3.2

Similar presentations

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google