Where does the positive scale function image pass through the point (5, - 2)? The analytic expression of this is? When B =? The intersection of the line y = 2x + B and the line y = 3x-4 is on the Y axis

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• 1. Draw the following image of positive scale function: (1) y = 8x, (2) y = 2x out of 3, (3) y = - 2x out of 3 Draw the following image of positive scale function: (1) y = 8x, (2) y = 2x out of 3, (3) y = - 2x out of 3
• 2. If the image of a positive scale function passes through points (2,4), then the analytic expression of the function is______ ．
• 3. What are the scale coefficients of positive scale function and quadratic function? Y and X are directly proportional to the product of C. the proportional coefficient is K. y is represented by X
• 4. If y is a positive proportional function of Z, Z is an inverse proportional function of X, and X ≠ 0, then what is the functional relationship between Y and X? They say y = k1z, z = K2 / X y=k1k2/x Why is Z = 2K / x?
• 5. If y = C + Z, y is the positive proportion function of X + 2, Z is the inverse proportion function of X, and x = 1, y = 1, find the relationship between Y and X
• 6. We know that the positive scale function y = 4x and the inverse scale function y = KX. (1) what is the value of K? When k is a value, there is no intersection between the two functions? (2) Can there be only one intersection of the two functions? If yes, find out the coordinates of the intersection point; if not, explain the reason
• 7. It is known that the positive scaling function y = 4x and the inverse scaling function y = K / X When k is a value, the images of the two functions have two intersections? When k is a value, the images of the two functions have no intersection? Explain the reason,
• 8. If we know that the positive scale function y = - 4x and the inverse scale function y = K / X intersect two points a and B, and the coordinate of a is (X.4), then the coordinate of point B is. Is there a (M + 3, n) B (m, n) ab symmetrical about the axis of symmetry? I don't know how to explain it
• 9. It is known that the image of positive scale function y = - 4x and inverse scale function y = K / X intersects at two points a and B. if the coordinate of point a is (x, 3), then the coordinate of point B is ()
• 10. Solution function y = x & # 178; - 2x - 1 = 0 Quick solution to one decimal
• 11. To get the image of the primary function y = 2X-4, the image of the positive scale function y = 2x can be used A shifts four units to the left B move four units to the right C moves up four units D moves down four units
• 12. Is y = - 3x square a positive proportional function?
• 13. In the function y = 1 / 3 x, y = 1 / 2 x + 3, y = 1 / 3 x, y = 2 [x-3], the positive proportion function is [] The linear function is []
• 14. When k=__ The function y = 2x ^ (k ^ 2-3x-3) is a positive proportional function
• 15. The image of a positive scale function passes through (2, - 3), and its relation is a.y = - 3 / 2x b.y = 2 / 3x C.Y = 3 / 2x D.Y = - 2 / 3x
• 16. When x > 1, the value range of Y is 0
• 17. The image with known positive scale function y = 1 / 4x passes through point a (2, a) (1) The analytic expression of inverse scale function image passing through point a (2) If any point P in the image of the inverse scale function is taken as the PA ⊥ X axis and Pb ⊥ Y axis, the area of the rectangular OAPB can be calculated
• 18. As shown in the figure, it is known that the image with positive scale function y = 3 / 4x and the image with inverse scale function y = K / X intersect at point a, and make a straight line ab ‖ Y axis through point a, and intersect X axis at point B, OB = 4 , m (m, n) is a moving point on the inverse scale function image, where 0 < n < 4 (1) The expression of inverse proportion function (2) When om = OA, find the value of M + n (3) Make a straight line MC ∥ X axis through point m, intersect Y axis with point C, intersect a straight line AB at point D. when the area of quad OADM is 12, please judge the size relationship between cm and DM, and explain the reason
• 19. Find the maximum value of the following function y = 2x & # 178; - 3x-5, y = - X & # 178; - 3x + 7 Find the maximum value of the following functions y＝2x²－3x－5 y=-x²－3x＋7
• 20. : when x takes what value, the value of the following function is zero (1) y = - 5 + 3x (2) y = 2x & # 178; - 5x + 3 (3) y = x-3 of X-1 The point is the third question. Because I don't understand. It's better to be clear