Odpowiedź :
Hej!
A = (1, 2) oraz B = (-2, 1)
{a * 1 + b = 2
{a * (-2) + b = 1
{a + b = 2
{-2a + b = 1 / * (-1)
{a + b = 2
+ {2a - b = -1
-------------------
3a = 1 / : 3
a = ⅓
⅓ + b = 2
b = 1⅔
y = ⅓x + 1⅔
Pozdrawiam! - Julka
Hej!
A = (1, 2) oraz B = (-2, 1)
{a * 1 + b = 2
{a * (-2) + b = 1
{a + b = 2
{-2a + b = 1 / * (-1)
{a + b = 2
+ {2a - b = -1
-------------------
3a = 1 / : 3
a = ⅓
⅓ + b = 2
b = 1⅔
y = ⅓x + 1⅔
Pozdrawiam! - Julka