The ordinate of a point a of the image with positive scale function y = x and inverse scale function y = K / X is 3; (2) Are there any other points except point a in the image of positive scale function and inverse scale function? If so, please write the coordinates of the intersection point

The ordinate of a point a of the image with positive scale function y = x and inverse scale function y = K / X is 3; (2) Are there any other points except point a in the image of positive scale function and inverse scale function? If so, please write the coordinates of the intersection point


y=3 x=3
3=k/3
k=9
y=9/x
There seems to be (- 3, - 3)



Intersection point of graph of first order function
What is the approximate position of the linear function y = KX + B and y = BX + K (B, K are not zero) in the same coordinate system?


Because y = KX + B, y = BX + K
So BX + k = KX + B
So BX KX = b-k
So x (B-K) = b-k
So x = (B-K) / (B-K) = 1
Take x = 1 back to the original formula and find y = K + B, y = k = B
So the image is in the 1.4 quadrant of x = 1



How to determine the coordinates of the intersection of a function image and the x-axis, such as the coordinates of the intersection of y = - 1 / 2 + 2 and the x-axis,


For example, in this problem, if you make y = 0, the function becomes - 1 / 2 x + 2 = 0
Then solve a linear equation of one variable
The same point of intersection with the y-axis, the value you want x = 0 is the point of intersection with the y-axis~
This kind of question all does!



Why is the graph of a linear function always straight
Can the graph of a function of degree be a curve


Every function image corresponds to an analytic expression. The analytic expression of a function is y = KX + B. in the same function, K is certain and the same, so y increases by a certain multiple with X, which is a straight line. It can not be a curve. (0, b) is the intersection coordinate with y axis, and (- B / K, 0) is the intersection coordinate with X axis



What are the characteristics of two parallel linear function images?
For example, let y = KX + B. if the lines of two primary functions are parallel, what is the relationship between K and B?


K is equal, B is unequal
K has nothing to do with B. K exists. If B is equal, they are collinear
K is the slope, parallel slopes are equal, B is the constraint on Y axis, independent of K



Given that a symmetry center of the image of the function y = 1 / 2tan (2x + ∮) is (- Pie / 6,0), find the ∮ value which satisfies the minimum absolute value of the condition
Don't copy - you copy the answers on the Internet are all wrong - the answer is - Pie / 6


The reconstruction of y = 1 / 2tan (2x + φ) image
A center of symmetry is (- π / 6,0)
Because the substitution of the symmetry center X of the tangent is either meaningless or in the image
The results are as follows:
0=1/2*tan(-π/3+φ)
tan(φ-π/3)=0
Then, there is: φ - π / 3 = k π
φ=kπ+π/3
Or - π / 3 + φ = π / 2 + K π
φ=5π/6+kπ
And the absolute value of φ is the smallest
Then when k = - 1, φ = - π / 6



Given the function y = 1 / 2tan (2x + φ), a symmetry center of the image is (- π / 6,0)
Then the minimum absolute value of the condition is


The reconstruction of y = 1 / 2tan (2x + φ) image
A center of symmetry is (- π / 6,0)
The results are as follows:
0=1/2*tan(-pi/3+φ)
tan(φ-pi/3)=0
Then there is: φ - pi / 3 = KPI
φ=kpi+pi/3
And the absolute value of φ is the smallest
Then when k = 0, φ = pi / 3



Given the function y = 2tan (π / 6-1 / 2x), find the center of symmetry of the function


y=2tan(π/6-1/2x)=- 2tan(1/2x -π/6)
1 / 2x - π / 6 = k π, or 1 / 2x - π / 6 = k π + π / 2, K ∈ Z
X = 2K π + π / 3, or x = 2K π + 4 π / 3
So the center of symmetry of the function is:
(2kπ+π/3,0),( 2kπ+4π/3,0) ,k∈Z.



Given that the image of a function y = KX + B intersects the x-axis at point a (- 2,0), and intersects the image of function y = 3x at point m (m, 3) n, the coordinates of N are obtained
It's y = 3 / X


Taking m (m, 3) into y = 3 / X
3 = 3 / m, M = 1
By introducing m (1,3), a (- 2,0) into y = KX + B, we can get the following result:
0=-2k+b
3=k+b
The solution is: k = 1, B = 2
So the analytic expression of a function is y = x + 2
The solution of the system of equations composed of y = x + 2 and y = 3 / X is: x = 1, y = 3 or x = - 3, y = - 1
So n (- 3, - 1)



If the image of a linear function y = KX + 5 passes through P (- 2, - 1), then K=____________________ 2 passes through the intersection of y = 3x + 2 and y = - 2x-8, and
The linear expression of (1,1) is______________________
3. The intersection coordinates of the image of the function y = half x-4 and y = - 3x + 3 are________________
4. If the line y = KX + B is parallel to the line y = - quarter x, then K=________________________
5. The analytical formula of the line parallel to the line y = - 2x and passing through the point a (0,4) is_________________________
If we know that the images of the linear functions y = 2x + A and y = - x + B pass through the points a (- 2,0) and intersect with the Y axis at two points B and C respectively, then the area of the triangle ABC is____________________


1 k=3
2 y=5x/3-2/3
3 (2,-3)
4 -1/4
5 y=-2x+4
6 6