The quadratic equation 2x-y-3 = 0 is written as a function y=_____ The first-order function is written as the first-order equation of two variables__________

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• 1. Graph of first order function and quadratic equation of two variables The line y = KX + B crosses the point [- 6.0] and intersects the Y axis with the point B. the area of the triangle formed by the line and the two coordinate axes is 12! It's very simple, but I forgot that the final term will be finished in two days, There is another one. The image of the first-order function Y1 = k1-4 and the positive scale function y2 = k2x all pass through the point [2. - 1]. Find the area of the triangle surrounded by two Korean and X
• 2. The intersection point of the image of the linear function y = X-2 and y = 2x + 1 is (), that is, x = (), y = () is the solution of the equations X-Y = 2 and 2x-y = - 1
• 3. Given the binary linear equation 2x + 3Y + 6 = 0, use the algebraic expression of X to express y, and regard y as the function of X, draw its image, and answer according to the image (1) When x = 6, the value of Y. (2) when y = - 4, the value of X. (3) when y = 0, find the value of X, which is the solution of the linear equation of one variable? -. get the image-
• 4. To solve the equations 2x-y = 1, x + y = 5 by image method, we need to draw a graph
• 5. The values of solutions X and y of binary linear equations (4x + 3Y = 1kx + (2k-1) y = 3) are opposite to each other Finding the value of K
• 6. 3T + 4S = - 2,5t-6s = 3 process,
• 7. The substitution method is used to solve the equations: {(1) 3s-t = 5 (2) 5S + 2T = 15
• 8. The ratio of displacement s I: s II: s III in the first second, the second and the third seconds of a free falling body=______ The velocity ratio V1: V2: V3 at the end of 1s, 2S and 3S=______ ．
• 9. How to distinguish between the end of the first second, the beginning of the third, within the second and within the first two seconds
• 10. Given the square of X + the square of Y + 4x-8y + 20 = 0, find the square of x = the square of Y
• 11. 5x-7.8=20.2
• 12. Solving 5x + 4 = 7x + 8
• 13. 1 / 3-2 / 7X = 6 / 7-x, x = how much?
• 14. 7x ^ 4 * x ^ 5 * (- x) ^ 7 + 5 (x ^ 4) ^ 4 - (x ^ 8) ^ 2
• 15. Solve X & # 179; - 7x & # 178; - 17x-9 = 0,
• 16. The fourth power of X + the square of 7x-8 Such as the title
• 17. 2(x-8)-0.7x+2=3.81
• 18. Calculation: (1) (ab-b ^ 2) △ a ^ 2-B ^ 2 of a ^ 2 + B ^ 2 · 1 of B (2) x ^ 2 + 3x + 2 of X + 1 + x ^ 2 + 7x + 12 of X + 3
• 19. Find x-4
• 20. The square of 5x-7x-6 Square of 15x + X-2 Square of 6x + 13x-5 4X squared - 8x + 3 Why?