Odpowiedzi

2010-03-11T18:00:55+01:00
A)p(1,1)
a₁*a₂=-1
2x-6=0
2x=6
x=3
prostopadla to y=-3
b)
2x+y+3=0
y=-2x-3
a₁*a₂=-1
-2*a₂=-1
a₂=½
y=½x+b
1=½*1+b
1=½+b
½=b
y=½x+½
c)√2x-y+5=0
y=√2x+5
a₁*a₂=-1
√2*a₂=-1
a₂=-√2/2
y=-√2/2x+b
1=-√2/2+b
b=1+√2/2
y=-√2/2x+1+√2/2
4 3 4