B(-2;4)
, :
(..)
2:
v = (12t - 3t2) /. , .
: .
, ; 12t - 3t2 = 0,
t (4 t) = 0, t1=0, t2= 4. v>0 
,
S= 
().
:
1: , .
a) 
b) 
c) 
2: .
a) 
/. , .
b) . 
/, 
/. 5 .
c) 
/. , 3- .
1: , .
2: .
| 1 | 2 | |
| S, 10 . ,  /c.
| |
|  /. , 3- .
| |
.
| .  /,  /. 5 .
| |
 .
|  /. , .
| |
 .
| /. , 3 .
| |
 .
| ,  /. ,   .
| |
| /. , .
| |
| . /,  /. 8 .
| |
| S, 8 . , v  /c.
| |
.
|  /. , 3- .
|
|
|
|
:
:
- ;
- ;
:
- ;
- , ,
.
