order the functions from narrowest to widest.

Question

f(x) = x^2, g(x) = 4x^2
f(x) = -2x^2, g(x) = 1/2x^2
f(x) = -x^2, g(x) = -5/8x^2, h(x) = 1/2x^2
f(x) = -5x^2, g(x) = -3/8x^2, h(x) = 3x^2

Answer 1

The functions ordered from narrowest to widest are:

f(x) = x^2
f(x) = -2x^2, g(x) = 1/2x^2
f(x) = -x^2, g(x) = -5/8x^2, h(x) = 1/2x^2
f(x) = -5x^2, g(x) = -3/8x^2, h(x) = 3x^2