What kind of transformation converts the graph of f(x)= - 4x^2–1 into the graph of g(x)= - 8x^2–2?

Question

What kind of transformation converts the graph of f(x)= - 4x^2–1 into the graph of g(x)= -8x^2–2?

Answer 1

Since g(x)=-8x²-2 = 2(-4x²-1) and -4x²-1 = f(x), then g(x)=2(f(x))