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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____________________ .
Disjoint in k > 0 one, three quadrant K
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- 1. 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
- 2. 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
- 3. 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
- 4. Definition of inverse scale function
- 5. 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?
- 6. What is an inverse scale function and what is a positive scale function
- 7. What is a positive scale function? What is an inverse scale function?
- 8. 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
- 9. 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
- 10. (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 ……
- 11. Image and properties of inverse scale function
- 12. The function y = (M-4) x + 3M + 2 is known. If it is a positive proportional function, then M = ()
- 13. 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
- 14. Y = 2mx-x + 1-3m, when m=___ Which is a positive scale function When m___ It is a function of degree
- 15. 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
- 16. If the positive scale function y = (1 = k) x and the inverse scale function y = (1-k) / X have intersection points, the value range of K is obtained
- 17. In a positive scale function y = (m-1) x image, y decreases with the increase of X, then the value range of M is____
- 18. The value of positive proportional function y = (k-1) x decreases with the increase of independent variable x. what is the value range of K and why
- 19. If y decreases with the increase of X, then the range of K?
- 20. Given that the function y = (2a + 1)) x - (3-B) is a positive proportional function, the value range of a and B is obtained What is the value of a when y decreases with the increase of X? What is the value of a when the image of this function passes through the first and third quadrants?