If the coordinates of the intersection of the image of the first-order function y = - x + A and the first-order function y = x + B are (2,8), then a + B=______ ．

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• 1. Find the intersection coordinates of the image and X axis of the quadratic function y which is equal to the difference of two times x minus two and then multiplied by the difference of five minus X
• 2. What are the coordinates of the intersection of two images with the first-order function y equal to negative half x plus 3 and y equal to 2x minus 2? A （2,﹣2） B(﹣2,2） C（2,2） D(﹣2,﹣2）
• 3. Let the coordinates of the intersection point of the function y equal to 1 / X and y equal to x minus 2 be (a, b). Then what is the value of 1 / a plus 1 / b
• 4. What is the coordinate of the intersection of the image and the y-axis when the linear function y equals minus 2x plus four
• 5. It is known that there are two intersections in the image where y is equal to ax and Y is equal to 4 / x minus A. if the abscissa of one intersection is 1, then the coordinates of the two points are
• 6. In order to make the image of function y = (2m-3) x + (3N + 1) pass through the positive half axis of X and Y axes, the values of M and n should be () A. m＞32，n＞-13B. m＞3，n＞-3C. m＜32，n＜-13D. m＜32，n＞-13
• 7. Given that the image of the first-order function y = (M-3) x + 2m + 4 passes through the intersection point P of the straight line y = negative 1 / 3x + 4 and the Y axis, find the surface of the triangle formed by the two function images and the X axis most urgent!
• 8. If the intersection of two images is one, then M =? I just have some points~ If we know that the intersection point of two images of the linear function y = 2x + m and y = 3x + 2m is one, then M =?
• 9. In order to make the image of function y = (2m-3) x + (3N + 1) pass through the positive half axis of X and Y axes, the values of M and n should be () A. m＞32，n＞-13B. m＞3，n＞-3C. m＜32，n＜-13D. m＜32，n＞-13
• 10. 1. If the image of the function y = (2m + 3) x + (3N + 1) passes through the positive half axis of the X and Y axes, then the values of M and N are?
• 11. If the abscissa of the intersection m of the image and the line y = 2x + 1 is 2, and the ordinate of the intersection n of the image and the line y = - x + 2 is 1, Find the analytic expression of this first-order function
• 12. The abscissa of the intersection m of the image of a linear function and the line y = 2x + 1 is 2, and the ordinate of the intersection n of the image of a linear function and the line y = - x + 2 is 1:1 The abscissa of the intersection m of the image of a linear function and the line y = 2x + 1 is 2, and the ordinate of the intersection n of the image of a linear function and the line y = - x + 2 is 1 Find: (1) the analytic expression of this linear function (2) The area of the triangle formed by the image of this function and the coordinate axis
• 13. What is the intersection coordinate (m, 2) of the image of the first-order function y = - x + A and the first-order function y = x + B
• 14. It is known that the intersection points a of the image of the first-order function y = MX + m-2 and y = 2x-3 are on the y-axis, and their intersection points with the x-axis are respectively point B and point C. (1) find the value of M and the area of △ ABC; (2) find the coordinates of the point on the image of the first-order function y = MX + m-2 whose distance to the x-axis is equal to 2
• 15. By moving the image of the | 1-x | + 3 power of the function y = 2 one unit to the left and four units to the down, and then symmetrically about the X axis, the analytic expression of the function is obtained
• 16. The image of the first-order function y = (2-3K) x + 4 is moved down by 2 units along the y-axis, and then left by 3 units along the x-axis. The analytic expression of the function is
• 17. If the image of the function y = 21-x + 3 is shifted one unit to the left and four units to the down, then it is symmetric about the X axis, the analytic expression of the function is___ ．
• 18. Point a (- 1, - 1) on the image of quadratic function y = (M & # 178; - 1) x & # 178; - 2 (m-2) x + 1, find the analytic expression of the quadratic function
• 19. If the image of function f (x) = sin2x - √ 3cos2x is m, then ① The image m is symmetric with respect to the line x = 11 / 12 π ② The minimum positive period of function f (x) is 2 π ③ The image M can be obtained by translating the image y = 2sin2x π / 3 unit length to the right Which ones are right?
• 20. Can the image with function y = 1 / 2x ^ 2 be moved up and down properly to make the new image pass through the point (4, - 2)? If you can, please tell the translation direction and distance, if not, please explain the reason