Answer:
B
Explanation:
To find g(x), I suggest first simplifying some of the answers so they are easier to visualize.
A; stays the same (3x^2)
B: (3x)^2=9x^2
C: (9x)^2=81x^2
D: (1/3x)^2=1/9x^2
After doing this, it is easy to see that the answer is B because when plugging in 1 for the x-value, you get 9 as the y-value.