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