The concept of inverse proportion function~ We know the general form of y = K / X inverse scale function. Then, y = K / 2x is also an inverse scale function. In the inverse scale function of y = K / 2x, if you know that point a (5,6) is on the function image, you need to substitute the coordinates of point a into the function. At this time, is y = 6, x = 5 or 2x = 5?
Let's say that the equation y = K / 2x can be transformed into y = 0.5k/x, and because point a (5,6) is on the function image, if y = 0.5k/x is brought in, then 6 = 0.5k/5, k = 60. Understand?
RELATED INFORMATIONS
- 1. What is an inverse scale function and what is a positive scale function
- 2. What is a positive scale function? What is an inverse scale function?
- 3. The topic of positive and negative proportion function In the following relation, y is inversely proportional to X A. A person's age y is related to his height X B. The width of a rectangle is constant, and its area y is equal to its length X C. Area y and radius X of a circle D. The divisor is constant, the divisor y and the quotient X
- 4. The problem of positive proportion function and inverse proportion function Given that y = Y1 + Y2, Y1 is inversely proportional to χ. When χ = 1, y = 4; when χ = 2, y is equal to 5. Find the value of Y (process) when χ = 4
- 5. (on the comparison of positive scale function and inverse scale function) It is known that in the same rectangular coordinate system, the positive scale function y = - 3x and the inverse scale function y = - 6 / X (this is a fraction, you should understand ~) intersect two points P and m below the x-axis, point a is on the negative half axis of the x-axis, and the distance from the origin is 4, Find: (1) the coordinates of P and m (2) Area of triangle map Depressed ……
- 6. The analytic expression of the relationship between positive proportion function and inverse proportion function?
- 7. A problem of positive proportion function and inverse proportion function It is known that the positive scale function y = ± X and the inverse scale function y = K / X (K ≠ 0) intersect at points a and B. the positive scale function y = MX (m ≠ ± 1, m ≠ 0) intersects the inverse scale function y = K / X (K ≠ 0) at points c and D. is the length of line AB always less than the length of line CD? If not, please prove. If not, request the value range of K when the length of line AB is always less than the length of line CD
- 8. Given the intersection point P (- 3,4) of the image of a positive scale function and an inverse scale function, find the relationship between the two functions and copy the table
- 9. 1. Positive proportion function 2. Inverse proportion function 3. Primary function 4. How to find the domain of definition of quadratic function? Is it based on the solution set, or what?
- 10. I always confuse quadratic function, inverse proportion function and positive proportion function. Who can figure out a way to remember the relationship between these three functions?
- 11. Definition of inverse scale function
- 12. The definition of inverse proportion function The y of inverse proportion function must decrease with the increase of X or increase with the decrease of X
- 13. Some inverse proportional function problems? (conceptual problems) Judgment: when y is inversely proportional to the square of X, y is not inversely proportional to X () (please explain the reason) Where () A.y=k/x B.y=b/x² C.y=1/2x+1 D.-2xy=1
- 14. On the concept of inverse proportional function It is said in the book that a function in the form of y = K / X (x ≠ 0, y ≠ 0, K ≠ 0) is called an inverse proportion function But, why do I do a question in the exam, say: y = k-1 / x, when k-1 why value, y = 0? Then this is not an inverse proportion function... Who can tell me what's going on... T t =Why do you go to k-1? My question is: concept (x ≠ 0, y ≠ 0, K ≠ 0), but the question is (forget it, just K, lest you misunderstand it.) why is k worth y = 0
- 15. On the concept of inverse scale function, The two branches of hyperbola can only be infinitely close to the two coordinate axes, but they are always close to each other_____ Two axes, when______ When the two branches of the hyperbola are in the 1.3 quadrant_____ 4 quadrant Three steps of drawing function image____________________ .
- 16. Image and properties of inverse scale function
- 17. The function y = (M-4) x + 3M + 2 is known. If it is a positive proportional function, then M = ()
- 18. Given that the function y = (1-3m) x is a positive proportional function, and Y increases with the increase of X, then the value range of M is () A. m>13B. m<13C. m>1D. m<1
- 19. Y = 2mx-x + 1-3m, when m=___ Which is a positive scale function When m___ It is a function of degree
- 20. Given the function y = (m-1) x + 1-3m, when m is of any value, y is a linear function of X and Y is a positive proportional function of X