Given that x = 2, y = - 1 and x = - 1, y = 2 are solutions of the equation y = KX + B, then the value of K is______ The value of B is______

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• 1. X = 1y = 2 and x = − 1y = 4 are the solutions of the equation y = KX + B, and the values of K and B can be obtained
• 2. It is known that the two solutions of the bivariate linear equation y = KX + B about X and y are x = 3, y = 4, x = - 1, y = - 2
• 3. Given a coefficient of the quadratic equation y = ax & # 178; + BX + C, how to find the quadratic function expression by knowing the coordinates of the upper two points on the image Just give me an example
• 4. Given that the solution of binary linear equations ax + y = B, mx-y = n is x = 3, y = - 1, then the coordinates of the intersection point of the graph of the linear function y = - ax + B and y = mx-n are
• 5. If the two solutions of the bivariate linear equation K × - y = - B are × = 2, y = 0 × = 1, y = - 1, find the expression of the corresponding linear function
• 6. It is known that x = 2Y = - 1 is a set of solutions of binary linear equation AX-2 = - by, and the value of 4-2a + B is obtained
• 7. Ax + (B + 3) y = 6 is a bivariate linear equation about X and Y. then the range of a and B is?
• 8. If ax ＋ (B ＋ 3) y = 5 is a quadratic equation with respect to X and y, then the value range of a and B is:
• 9. If ax + (B + 3) y = 6 is a quadratic equation with respect to X and y, then the value range of a and B
• 10. Ax + (B + 1) y = 3 is a bivariate linear equation about X and y, then the value range of M and N is? Wrong. It's the value range of ab
• 11. Given (brace) x = 3, y = - 2, finding (brace) x = - 2, y = 3 is the solution of equation y = KX + B, finding the value of K and B
• 12. If (k ^ 2-4) XY + (K-2) x + (K + 1) y + 2k-1 = 0 is a quadratic equation with respect to X and y, then k =? HELP ME
• 13. If (K-4) x + (K-2) x + (K + 3) y = K + 1 is a quadratic equation with respect to XY, what is the value of K?
• 14. Given the value of solution X and y of binary linear equations 2x + y = K + 3, x-2y = 2K is - 2, find the value of (k ^ 2) - 2K + 1 The sum of the values of X and Y is - 2
• 15. It is known that the solution of the system of linear equations {2x-y = k, x-2y = 11-2k} with respect to X and Y satisfies X-Y = 2, and the value of K is obtained
• 16. To solve the equations: 0.5x-3y = - 1-12x + 5Y = 3
• 17. X / 2 + Y / 3 = 7 and 2x / 3-y / 4 = 1
• 18. The solution of x = y + 5,2x-y = 7 is a solution of the binary linear equation x + y + a = 0. Find the value of A
• 19. Bivariate linear equation: 2 parts x + 3 parts y = 7 ①, 3 parts 2X-4 parts y = 1 ② RT, with addition, subtraction and elimination
• 20. Solve the following equations (1) 2x + 3Y + 4 = 05x + 6y + 7 = 0 (2) x2 + Y3 = 24 (x − y − 1) = 3 (1 − y) − 2