Answer:
D) g(x) = -4x²
Explanation:
From f(x) to g(x), there is a reflection about the x-axis, followed by a vertical stretch.
So, we know that g(x) needs to have a negative leading coefficient, which eliminates the first two options.
Now C can't work because that would involve a vertical compression since the absolute value of the leading coefficient is less than 1
Therefore, D is correct!