4x² +6 3
If f(x)=
and g(x)=
2x +3
2
find /(x) g(x).
A. 12x? +18
4x²+3
B. 3
2
C. 4x2 + 18
4x +3
D. 3

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

answer:

step-by-step explanation:

if i did my math right then the answer should but 108