"Changing Fish" Position and Coordinates PPT Courseware 4

Description

"Changing Fish" Position and Coordinates PPT Courseware 4

The fish that students will see is the coordinates (0,0), (5,4), (3,0), (5,1), (5,-1), (3,0), (4, -2), the points of (0, 0) are connected by line segments in sequence.

Let the points (0,0), (5,4), (3,0), (5,1), (5,-1), (3,0), (4,-2), ( 0,0)

Make the following changes:

(1) The ordinate remains unchanged, the abscissa becomes twice the original value, and then the obtained points are connected in sequence with line segments. What changes does the resulting pattern have compared with the original pattern?

(2) Keep the ordinate unchanged, add 3 to the abscissa, and then connect the obtained points with line segments. What changes does the resulting pattern have compared with the original pattern?

Let the points (0,0), (5,4), (3,0), (5,1), (5,-1), (3,0), (4,-2), ( 0, 0) make the following changes:

(1) The abscissa remains unchanged and the ordinate is multiplied by -1 respectively. What changes does the resulting pattern have compared with the original pattern?

(2) When the vertical and horizontal coordinates are doubled respectively, what changes does the resulting pattern have compared with the original pattern?

Class exercises

1. As shown in the figure, compared with the triangle in ①, what changes have occurred in the triangles in ②③④⑤?

2. What changes have occurred to the coordinates of the vertices of the right triangle in the figure?

summary

1. Know that there is a close relationship between the coordinate changes of the points on the graph and the changes of the graph!

2. When the abscissa or ordinate changes, how does the new pattern change compared with the old pattern?

1. The ordinate remains unchanged, the abscissa becomes a times the original value respectively, the graph _______ is a times the original value (a>1) or the graph is shortened horizontally to a times the original value (0

2. The abscissa remains unchanged, the ordinate becomes a times of the original respectively, the graph _______ is a times of the original (a>1) or the graph is shortened vertically to a times of the original (0

3. The abscissa and ordinate become a times the original at the same time, and the graph _______ is a times the original (a>1)

Keywords: Position and Coordinates courseware, Changing Fish courseware, Beijing Normal University Edition eighth grade mathematics volume PPT courseware, Eighth grade mathematics slide courseware download, Position and Coordinates PPT courseware download, Changing Fish PPT courseware download, .ppt format

For more information about the "Fish with Changing Position and Coordinates" PPT courseware, please click on the "Fish with Changing Positions and Coordinates" ppt tag.

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Update Time: 2024-10-03

This template belongs to Mathematics courseware Beijing Normal University eighth grade first volume mathematics industry PPT template

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