Question

If f(x) = 2x and g(x) = 4x. Which statement is true?

A) None are true.
B) as x → ∞, f(x) < g(x)
C) as x → ∞, f(x) = g(x)
D) as x → ∞, f(x) > g(x)

Answer 1

∞ is an undefined number. No one knows how large ∞ is hence no relation can be obtained between functions.
So option A is correct.