PLEASE HELP ME THANK YOU :)

B

Step-by-step explanation:

Notice that the function gives us 1 in the ordinate for an abscissa of 3.

Let's try each expression and see the outcome.

A. g(3)= (1/3)*9

          =3

that is false

B. g(3)= [(1/3)*3]²

          = 1

that is True!

we found the answer but let's try the rest

C. g(3)= 3*3²

          = 27

False

D. g(3)= [(1/9)*3]²

          = 1/9

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional