"Image of Function" First-time Function PPT Courseware

Description

"Image of Function" First-time Function PPT Courseware

induction

Methods of expressing functional relationships:

1. Analytical method: accurately reflects the quantitative relationship between functions and independent variables.

2. List method: specifically reflects the numerical correspondence between the function and the independent variable.

3. Image method: intuitively reflects the law of function changes as the independent variables change.

Observe and think:

What should we pay attention to when observing the graph of a function?

(1) Clarify the meaning of the horizontal and vertical coordinates.

(2) The value range of the independent variable.

(3) The law of changes of functions in the image with independent variables.

Class exercises

1. The known point (-1,2) is a point on the graph of function y=kx, then k=_____.

2. Among the following points, what is ( ) on the graph of function y=

A. (—2,—4) B. (4,4) C. (—2,4) D. (4,2)

3. Point A (1, m) is on the graph of function y=2x, then the coordinates of the point are ( )

A. (1,) B. (1,2) C. (1,1) D. (2,1)

4. Among the following four points, there are ( ) on the graph of function y=2x-3. (1,2) , (3,3) , (—1, —1), (1.5,0)

A. 1 B.2 C.3 D.4

Keywords: One-time function courseware, image courseware of function, New People's Education Edition eighth-grade mathematics PPT courseware, eighth-grade mathematics slide courseware download, one-time function PPT courseware download, image of function PPT courseware download, .ppt format

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Update Time: 2024-10-03

This template belongs to Mathematics courseware People's Education Press Eighth Grade Mathematics Volume 1 industry PPT template

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