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1, when m=, the function is a linear function;
2. Regarding the linear function of X, if it is to be a proportional function, then m =；;
3. When a=, the function is an inverse proportional function;
4. When b, the linear function and the inverse proportional function intersect;
5. If the intersection of the image of the linear function and the Y axis is below the X axis, the range of m is;
6. It is known that m is an integer and the image of a linear function is not greater than the second quadrant, then m =；;
7. If the image of a linear function passes through the origin, then k=, and the straight line passes through the fourth quadrant;
8. When the linear function is known, when K and Y increase with the increase of X, the image passes through the fourth quadrant;
9. If the intersection of a straight line and a straight line is known on the X axis, then k1:k2 =;
10, it is known that the variable y is inversely proportional to x, when x=3, y=-6, then when y=4, x =;
1 1, and the area of the triangle surrounded by the straight line and the coordinate axis is;
12. If point A(2m, -m2) is on the image of the function, then k 0；;
Second, multiple choice questions
13, the following statement is incorrect ()
A, linear function is not necessarily a proportional function; B, if it is not a linear function, it must be a proportional function;
C, proportional function is a special linear function; D, if it is not a proportional function, it must not be a linear function;
14, it is known that the image of the inverse proportional function passes through point A(a, b), so its image must also pass through ().
a 、(-a，-b) B 、( a，-b) C 、(-a，b) D 、( 0，0)
15, the straight line passes through the first, second and fourth quadrants, then the straight line does not pass through ().
A, the first quadrant b, the second quadrant c, the third quadrant d and the fourth quadrant
16, no matter what real number m is, the intersection of the sum of straight lines cannot be in ().
A, the first quadrant b, the second quadrant c, the third quadrant d and the fourth quadrant
17, it is known that the image of a linear function passes through the origin, then ()
A, k = 2 b, k=2 C, k= -2 D, uncertain.
18, when the image of k>0, inverse proportional function and linear function y=kx-k is roughly ().
19, once the function is known, the following statement is correct ().
A. When M
B. when n >; 4. The intersection of the image of the function and the Y axis is below the X axis;
C, when n=4, the image of the function passes through the origin;
D, when m≦, n
20, such as the upper right figure, p is a point on the hyperbola, and the area of the shaded part in the figure is 3, then the analytical formula of this inverse proportional function is ().
A, B, C, D,
Third, answer questions.
2 1. It is known that the intersection of the image of the linear function of X and the Y axis is above the X axis, and Y decreases with the increase of X, so find the value range of A. ..
22. It is known that the image of a linear function and the image of an inverse proportional function intersect at point A and point B, and the abscissa of point A and the ordinate of point B are both -2. Find the analytical expression of this linear function.
23. The image of a known linear function passes through points A (2, 1) and B(- 1, -3).
(1) Find the analytical expression of this linear function; (2) Find the coordinates of the intersection of the image of this linear function with the X axis and the Y axis;
(3) Find the triangle area surrounded by the image of this linear function and two coordinate axes.
24. It is known that the images of the linear function y=kx+3b and the inverse proportional function of x all pass through point A (1, -2).
Find the analytical expressions of (1) linear function and inverse proportional function;
(2) The coordinates of the other intersection point b of these two function images.