When k is a value, y = (K2 + k) xk2 − K − 3 is an inverse proportional function, that is, K=______ ．

∵ y = (K2 + k) xk2 − K − 3 is an inverse proportional function, ∵ K2 − K − 3 = − 1k2 + K ≠ 0, the solution is k = 2

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1. Given that y = x / k-1 + K & # 178; - 1 is an inverse proportional function, the value of K is obtained
2. The general formula of inverse proportion function: y = K / X; (K ≠ 0) then, is k of y = x an inverse proportion function
3. When k takes what value, y = (K & # 178; + k) x ^ k & # 178; - K-3 is the inverse proportional function of X?
4. Is y = 1 / X & # 178 an inverse scale function? Point out the value of K
5. Are y = 1 / X and y = 1 / x-3 inverse scale functions
6. It is known that the inverse proportional function y = m + 3 of X passes through points a (2, - M) and B (n, 2n) Finding the values of (1) m and n (2) If there are two points P1 (x1, Y1) and P2 (X2, Y2) on the image, and X1 < 0 < X2, try to compare the size of Y1 and Y2
7. If the image of inverse scale function y = K / X passes through point P (- 1,2), then the image of this function lies in__ ? Why 2,4 image line? I calculate y = x - 2, hee hee~ Why does it increase
8. If the image intersection AB and two AB a of a given linear function y = ax and inverse scale function y = x B + 1 are (1,2), then the expression and B coordinate After answering the correct to add large points If the image intersection AB and two AB a of the linear function y = ax and inverse scale function y = B + 1 of X are (1,2) There is also a picture of a straight line passing through the upper left corner and the lower right corner and a line with two bends Straight line passing through intersection Finding the expressions of two functions and B coordinates
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10. Given that y is the inverse proportional function of X + 1, when x = 3, y = 8, find the value of y when x = - 3?
11. Y is the inverse proportion function of X. when x = 3, y = 8, find the functional relationship between Y and X
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13. It is known that y is the inverse proportional function of X, and when x = - 1, y = 2, find the functional relationship between Y and X, and find the value of X when y = - 1
14. It is known that y is the inverse proportional function of X, and when x = 3, y = - 8. (1) write the functional relationship between Y and X. (2) find the value of X when y = 2
15. It is known that y is the inverse proportional function of X, when x = 2, y = 6 1. Write the functional relationship between Y and x 2. Find the value of y when x = 4
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17. (2011. Bazhong) as shown in the figure, if the image of primary function y = 2x-1 and inverse scale function y = K / 2x passes through a (1,1), and y = 2x-1 intersects with y axis at point D, another intersection point with inverse scale function y = K / 2x is B, and there is a point C in the positive half axis of Y axis, so that the area of △ ABC is 6, then the coordinates of point C can be obtained
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