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"Image and Properties of Inverse Proportional Functions" PPT courseware of inverse proportional functions (Lesson 2), 17 pages in total.
Basic knowledge points
Knowledge point 1: Properties of inverse proportional functions
1. Among the following functions, y decreases as x increases (C)
A.y=-9/x( x<0) B.y=11/x
C.y=3/x( x>0 ) D.y=2x
2. (Textbook Motif Variation) If the image of the inverse proportional function y=(1"-" 2m)/x decreases as x increases in each quadrant, then the value of m The value range is (B)
A.m>1/2 B.m<1/2
C.m≤1/2 D.m≥1/2
Comprehensive ability improvement
7. (Hengyang High School Entrance Examination) Regarding the inverse proportional function y=-2/x, which of the following statements is incorrect (D)
A. The image is distributed in the second and fourth quadrants
B. When x>0, y increases with the increase of x
C. The image passes through point (1,-2)
D. If points A(x1,y1) and B(x2,y2) are on the image, and x1
8. (Weihai High School Entrance Examination) If the points (-2, y1), (-1, y2), (3, y3) are on the hyperbola y=k/x (k<0), then the sizes of y1, y2, y3 The relationship is (D)
A.y1
C.y2
Expand exploration and breakthrough
16. As shown in the figure, the three vertices of △ABC are A(1,2), B(5,2), C(5,5). If the inverse proportional function y=k/x is in the first quadrant, the image There is an intersection point with △ABC, then the value range of k is (A)
A.2≤k≤25 B.2≤k≤10
C.1≤k≤5 D.10≤k≤25
Keywords: Beijing Normal University edition ninth grade mathematics volume PPT courseware free download, image and properties of inverse proportional function PPT download, inverse proportional function PPT download, .PPT format;
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"Image and Properties of Inverse Proportional Functions" PPT courseware of inverse proportional functions (Lesson 1):
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"The Image and Properties of Inverse Proportional Functions" PPT on Inverse Proportional Functions (Lesson 1), 22 pages in total. Learning objectives The graph of the inverse proportional function The symmetry of the graph of the inverse proportional function ... ... ... Understanding new knowledge Knowledge points The graph of the inverse proportional function How to draw the graph: (1)..