Odpowiedź :
A = (4, -3) i B = (-2, -1)
{4a + b = -3
{-2a + b = -1 / * (-1)
{4a + b = -3
+ {2a - b = 1
--------------------
6a = -2 / : 6
a = -⅓
-2 * (-⅓) + b = -1
⅔ + b = -1
b = -1⅔
y = -⅓x - 1⅔
A = (4, -3) i B = (-2, -1)
{4a + b = -3
{-2a + b = -1 / * (-1)
{4a + b = -3
+ {2a - b = 1
--------------------
6a = -2 / : 6
a = -⅓
-2 * (-⅓) + b = -1
⅔ + b = -1
b = -1⅔
y = -⅓x - 1⅔