Odpowiedzi

2010-02-12T17:38:37+01:00
Y= ax + b
y= ax + b

1 = -1a + b // (-1)
-1 = 5a + b

-1 = 1a - b
-1 = 5a + b

-2 = 6a
a = - 1/3

-1 = 5a + b

-1 = 5 x -1/3 + b
b = 2/3

y = 1/3x + 2/3


2010-02-12T17:43:51+01:00
Y-1=-1-1/5+1(x+1)
y=-2/6(x+1)+1
y=-1/3x-1/3+1
y=-1/3x+2/3
2 1 2