If the line y = 2x-6 moves 3 units to the left along the x-axis, and then 2 units to the up along the y-axis, the analytical expression of the line is

Y = 2x-6 (3 units left) → y = 2 (x + 3) - 6 = 2x, 2 units up → y = 2x + 2

If the lines L1 and L2 are symmetric about the X axis and the line L1: y = 2x + 1 is known, the equation of the line L2 is obtained

This is very simple. Take the points (0,1) (1,3) on the line L1. Their points about the x-axis symmetry are (0, - 1) (1, - 3) respectively. Then L2 is the line passing (0, - 1) (1, - 3). I believe you can finish it by yourself next!

Given that the line L1: y = 2x + 3, L1, L2 is symmetric about the y = x axis, please use some skillful methods to solve the linear equation of L2,

The simplest way: transfer in
Take point (x, y) on L2
Then the point (y, x) with respect to y = x is on L1
x=2y+3
Just sort it out

RELATED INFORMATIONS

1. If the line L and the line x + Y-1 = 0 are symmetric about the Y axis, then the equation of the line L is______ ．
2. If the line L and the line x + Y-1 = 0 are symmetric about the Y axis, then the equation of the line L is______ ．
3. Linear equation of 2x-y-5 = 0 on X-axis symmetry Y-axis origin
4. The linear equation of y = 2x with respect to X-axis symmetry is______ ．
5. The intersection of the straight line y = 2x + 3 and the parabola y = x square is a and B. find the OAB area of the triangle
6. The line l1y = - 2x + m intersects with the line l2y = x + 1 at the point P (a, 2) to find the area of the triangle surrounded by L1, L2 and x-axis. I have found that the analytical expression of the line L1 is y = - 2x + 4
7. The analytical formula of the line y = 2x with respect to the x-axis symmetry is () the analytical formula of the line y = 2x + 4 with respect to the x-axis symmetry is ()
8. On the line y = X-2, the relation of the line after X-axis symmetry is
9. The analytic formula of the line y 27x 101 about X axis symmetry is
10. The monotone increasing interval of function y = Log1 / 3 (x ^ 2-6x + 5) is Why not (1,3)
11. Translate the straight line y = - 2x + 1 to the left along the y-axis by 3 units, and the function formula of the straight line is obtained
12. The analytic expression of the line obtained by translating the line y = - 2x + 3 down four units is? A y=-2x+7 B y=-2x-1 C y=-2x+11 D y=-2x-5
13. If the image of quadratic function y = x2 + MX + n has only one intersection (- 2,0) with X axis, then M=_____ ,n=_____ .
14. Given the first-order function y = MX - (m-2), this paper discusses the increase and decrease of the first-order function and the quadrant of the image according to the different values of M
15. If the image of the linear function y = (m-2) x + (n-1) does not pass through the second quadrant, then M (), n ()
16. If y = (M + 1) XM2 − m-3x + 1 is a quadratic function, then the value of M is______ ．
17. Please prove the monotonicity of exponential function Proof Halo, what is derivative? Is there another way?
18. Who can give a strict proof of monotonicity of exponential function? Can you be more detailed I just want to avoid using high numbers Let X1 be less than X2, that is, △ x = x2-x1 > 0 ∴△y＝a^X2-a^X1=a^X1*[a^(X2-X1)-1] When a ﹥ 1, as long as we can prove that a ^ (x2-x1) ﹥ 1, we can prove that the function is A > 1 is an increasing function. So the problem now becomes how to prove that when a > 1, there is a ^ (x2-x1) > 1. This seems to involve the monotonicity of power function. How to deal with power function? If only anyone knew (try to avoid Advanced Mathematics)
19. How to find the monotonicity of exponential function
20. Monotonicity proof of high school exponential function Y = 2 ^ x to prove monotonicity. I'm in grade one of senior high school. Can I use a simpler definition, such as the definition of monotonicity Solution 1: let X1 < X2, let C = x2-x1 > 0 f（x1）-f（x2）=2^x1-2^x2 =2^x1(1-x^c) ∵c＞0 1 ＜ x ^ C (how did you get this step? Isn't it proved by the definition of monotonicity?) Solution 2: let X1 < x2 and C = x2-x1 > 0 F (x1) divided by F (x2) = 2 ^ (x1-x2) ∵x1-x2＜0 2 ^ (x1-x2) < 2 ^ 0 = 1 The above two solutions will fall into a cycle, so we can find the positive solution of monotonicity definition,