2. the straight line l is perpendicular to the x axis B=0.

3. the straight line l is perpendicular to the y axis, and A=0.

4. The straight line L intersects with two coordinate axes A*B≠0, 1,

Core report

Can you tell me about your thinking and judgment? We just talked about this chapter today, but I don't know much about substituting A*0+B*0+C=0 C=0 2. The straight line l is perpendicular to the x axis, and B=0 x has only one value. Y can take the same reason at will. 4. The straight line L intersects with two coordinate axes, and A * B ≠ 0 x = 0 y.

(2) B=0 X=-C/A

(3) A=0，y=-C/B

(4) A≠0, while B ≠ 0,2, 1, c = 0；;

2、B = 0；

3、A = 0；

4, AB is not equal to 0,2, a problem about the sum equation of two required straight lines in senior one mathematics (detailed solution)

Let the equation of the straight line L be AX+BY+C = 0 (A and B are not 0 at the same time), and find out the conditions that A, B and C should meet according to the following conditions: 1. The straight line l passes through the origin, 2. The straight line l is perpendicular to the x axis, 3. The straight line l is perpendicular to the y axis, 4. The straight line l intersects both axes.