Babawan
=-0.5 =0.5
A-b -2 of A 3-A 2b
19: 13
60x^2 y^2
Y = x-3/a。
Exercise 2
DCCDA
12
3。 068× 10^7
-3.48× 10^-5
2
10
3 7
Exercise 3
X≥ 1 and ≠2
(- 1,2)
Y= 12+2x
-2 2 3
M < 2/3
95
10
12
3. 16
10
67.5
DBDBD BCCCB
Exercise 13
X 2-4 x 2+4x+9
2
-5
-7
Y=6x-2
24 increase
1