{4x + 3y – 6=0
{2x + y – 4=0

{4x + 3y – 6=0
{-4x – 2y + 8=0

y+2=0
y=-2

2x – 2 – 4=0
2x=6
x=3

x=2

y=5

ax + by + c=0

A(-8;-6)
B(-3;-1)

a.(-8) + b.(-6) + c=0 , a.(-3) – b + c=0

-8a – 6b + c=0
-3a – b + c=0

{-8a – 6b + c=0
{-3a – b + c=0

{-8a – 6b + c=0
{18a + 6b – 6c=0

10a – 5c=0

10a=5c
a=0.5c

-4c – 6b + c=0
-6b=3c
b=-0.5c

0.5cx – 0.5cy + c=0

x – y + 2=0

5 – y + 2=0

y=7

M(5;7)

A(0;1)
B(0;-1)
C(-5;0)
D(5;0)

AD ուղղին

ax + by + c=0

0 + b + c=0 , 5a + 0 + c=0

b=-c

a=-c/5

-c/5x – cy + c=0

x + 5y – 5=0

BD ուղղիղն
ax + by + c=0

0 – b + c=0 , 5a + 0 + c=0

b=c
a=c/5

c/5x + cy + c=0

x + 5y + 5=0

CB ուղղիղն
ax + by + c=0

0 – b + c=0 , -5a + 0 + c=0

b=c

a=-c/5

-c/5x + cy + c=0

x – 5y – 5=0

CA ուղղիղն

0 + b + c=0 , -5a + 0 + c=0

b=-c

a=-5/c

-5/cx – cy + c=0

x + 5y – 5