Is the positive scale function y = KX + b k necessarily greater than zero? If K is less than zero, y decreases with the increase of X Is that still a positive ratio?

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• 1. The image of the linear function y = KX + B (K ≠ 0, B ≠ 0) always passes through the point (0,?) And (0,?) Two points, the positive proportion function y = KX (K ≠ 0) always passes through (0,?) And (1,?) Two points
• 2. The positive proportional function y = KX passes through point a (3, - 4) to find the value of K
• 3. It is known that the positive proportional function y = KX (K ≠ 0) and the y of points (2, - 3) on the function increase or decrease with the increase of X
• 4. It is known that the image of positive scale function y = KX passes through point P (1,2), as shown in the figure. (1) find the analytic expression of the positive scale function; (2) translate the image of the positive scale function to the right four units, and find the analytic expression of the translated straight line
• 5. If we know that y = KX + K-3 is a positive proportional function, then its analytical expression is
• 6. If Y-2 and X-2 are in positive proportion, then the functional relationship between Y and X is () A. a linear function may also be a positive proportion function B. a positive proportion function c. a linear function
• 7. Among the following functions, the first-order function is (1) y = - 8x (2) y = 5x & # 178; + 6 (3) y = - 8 / X (4) y = - 0.5x-1 (5) y = K & # 178; X + 6 (k is a constant)
• 8. The following functions: ① y = 2x + 3; ② y = 3 (3-x); ③ y = 3x-x2; ④ y = − X3; ⑤ y = 5 A. ①②③④⑤B. ②④C. ①③⑤D. ②④⑤
• 9. The following functions are: 1. Y = - 3x + 4 2. Y = 7 / 5x 3. Y = 1 + 2 / x 4. Y = x & # 178; + 25. Y = X-1 / 2, where is a linear function?
• 10. : 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
• 11. Let y = (K + 2) x + K be the square of - 9=___ It is a positive proportional function passing through two or four quadrants
• 12. How many quadrants must the image of the positive scale function y = (K & # 178; + 1) x (k is a constant, K ≠ 0) pass through
• 13. What are the characteristics of symmetry of inverse scale function image The symmetry of the origin of the y-axis is complete It's too esoteric. I just want to know what quadrant is symmetrical and what quadrant is the point after symmetry``
• 14. Inverse scale function image If the line y = 2x-1 intersects with the Y axis at point a, and then the line is translated upward by one unit, and intersects with the curve y = 2 / X at two points B and C, what is the area of triangle ABC
• 15. Two methods are used to draw the inverse scale function image of y = - 2 / X
• 16. How to solve the area of figure in inverse scale function
• 17. The image of inverse scale function y = KX passes through point a (2,3). (1) find the analytic expression of this function; (2) judge whether point B (1,6) is on the image of this inverse scale function, and explain the reason
• 18. The image of inverse scale function y = KX passes through point a (2,3). (1) find the analytic expression of this function; (2) judge whether point B (1,6) is on the image of this inverse scale function, and explain the reason
• 19. The image of inverse scale function y = KX passes through point a (- 2,3); (1) find the analytic expression of this function; (2) judge whether point B (1,6) is on the image of this inverse scale function, and explain the reason
• 20. If the image of the inverse scale function passes through point a (2,3), then are points B (- √ 2,3 √ 2), C (2 √ 3, - 3) d (9,2 / 3) on the image of the function