The line L1 is ax + 2y-1 = 0, and the line L2 is x + (A-1) y + 2 = 0 if L1 ⊥ L2 finds the value of A

If L1 ⊥ L2, a × 1 = (- 1) × 2 × (A-1), that is, a = 2-2a, that is, a = 2 / 3

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1. Line L1: ax + 2Y + 1 = 0 and line L2: (3-A) X-Y + a = 0, two lines parallel, then the value of a is, how to calculate!
2. If the lines L1: ax + (1-A) y = 3, L2: (A-1) x + (2a + 3) y = 2 are perpendicular to each other, then the value of a is () A. 0 or - 32B. 1 or - 3C. - 3D. 1
3. If the lines L1: ax + (1-A) y = 3, L2: (A-1) x + (2a + 3) y = 2 are perpendicular to each other, then the value of a is () A. 0 or - 32B. 1 or - 3C. - 3D. 1
4. Given that the lines L1: y = AX-2 and L2: y = (2a + 1) x + 1 are perpendicular to each other, then a is equal to? None Given that the lines L1: y = AX-2 and L2: y = (2a + 1) x + 1 are perpendicular to each other, then a is equal to? No solution, so that a is equal to - 1 or 1 / 2
5. It is known that L1: x + ay-2a-2 = 0, L2: ax + y-1-a = 0 (1) If L1 ‖ L2, try to find the value of A (2) If L1 ⊥ L2, try to find the value of A
6. It is known that Y &; = 2x-1 / 3, Y &; = x + 2 / 4. When x takes what value, Y &; is smaller than y &; by 1 Urgent process~
7. What is m = if the coordinates of the intersection of the straight lines Y &; = x + 3 and Y &; = - x + B are (m, 8) B =, when x, y ﹥ y ﹥ 8321; > y ﹥ 8322;, the intersection of the line y ﹥ 8321; and the x-axis is, and the intersection of the line y ﹥ 8321; and the y-axis is
8. It is known that the image of positive scale function y = (K + 2) x has two points a (X &;, Y &;) B (X &;, Y &;) When X &; < x &;, Y &; > y &;, then the value range of K is______ .
9. We know that the image of positive scale function y = K &; X intersects with the image of linear function y = K &; X-9 at point P (3, - 6). 1. Find K &;, K & 2. If the image of a linear function intersects the X and Y axes at points a and B respectively, the area of △ ABP is calculated
10. In the graph of function y = - K / X (k < 0), there are three points (- 2, Y &;), (- 1, Y &;) Q: what is the size of the function values Y &;, Y &;, Y &?
11. If the line ax + 2Y + 2 = 0 is parallel to the line 3x-y-2 = 0, then the real number a is equal to () A. -6B. -3C. −32D. 23
12. If the line ax + 2y-6 = 0 is parallel to x + (A-1) y - (A & # 178; - 1) = 0, then the distance between them is equal to? There is also help to find (1-k) (k-1 / 7) = - 1-k (1 + K / 7)
13. A = 2 is the () condition that the line ax + 2Y = 0 is parallel to the line x + y = 1
14. If the line ax + 2y-1 = 0 is parallel to the line X-Y + 2 = 0, then the real number a =
15. If the line ax + 2y-3 = 0 is parallel to x + (A-1) y + 2 = 0, then the value of a is
16. The distance between two parallel lines ax + 2y-1 = 0 and X + (A-1) y + 2 = 0 is? Is the value of a calculated by using the same slope and then by using the knowledge of the distance between two parallel lines?
17. If the line ax + 2y-3 = 0 is perpendicular to the line x + y + 1 = 0, then a is equal to
18. 1 the line ax + 2Y + 1 = 0 is perpendicular to the line x + Y-2 = 0, then what is the value of a? 2 find the minimum of the sum of the distances from any point on the x-axis to the fixed point (0,2), (1,1)?
19. If the line ax + 2Y + 1 = 0 is perpendicular to the line x + Y-2 = 0, then a=______ ．
20. If the line ax + 2Y + 1 = 0 is perpendicular to the line x + 3y-2 = 0, what is the value of a?