) Mao
A.y=-3x
B.y=-3
1
C.y=-3
D.y=-3
2. If hyperbola y=
After point A(3, -2), the following points on the hyperbola are (
)
A.(2,3)
B.(6, 1)
C.(- 1,-6)
D.(-3,2)
3. A certain mass of carbon dioxide, when its volume V=5.
, density p= 1.98kg/
When, p and v
The functional relationship between is (
)
A.p=9.9V
B.
C.
D.
4. If point A(-2,
)，B(- 1，
)，C( 1，
) in the inverse proportional function y=
On the image,
Then the following conclusion is correct (
)
A.
& gt
& gt
B.
& gt
& gt
C.
& gt
& gt
D.
& gt
& gt
5. Known
+
=y, where
and
In inverse proportion, the proportional coefficient is
, and
and
In direct proportion, the proportional coefficient is
If x=- 1 and y=0, then
,
This relationship is (
)
A.
=0
B.
= 1
C.
=0
D.
=- 1 1. It is known that y is inversely proportional to 2x+ 1. When x= 1, y = _ _ _ _ _. 2. Known function y =
, when k = _ _ _, its image is hyperbola ... known function y=
In each quadrant, y decreases with the decrease of x, so the value range of k is _ _ _ _ _ _. 4. Known inverse proportional function y=
, when x>0, y increases with x _ _ _ _ _ _ _ _ _ 5. Given that the proportional function y= kx (k ≠ 0) and y decreases with the increase of x, the inverse proportional function y=
, when x
0, y increases with x and _ _ _ _.
6. If the function y=
In the second and fourth quadrants, the image of function y=kx- 1 passes through quadrant 7. If the inverse proportional function y=(2m- 1).
The image is in the first and third quadrants, then the analytical formula of the function is _ _ _ _ _ _.