I only need help on question Q9 (a)

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Evaluate this using ! 0.25^2 x 2.4 + 0.25 x 2.4^2 − 0.25 x 2.4 x 0.65

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.