Question

Which function represents exponential growth?

f(x) = 3x

f(x) = x3
f(x) = x + 3
f(x) = 3x

Answer 1

f(x) = x3

f(x) = x + 3

f(x) = 3x

Answer 2

x³ because it increases at rate of x³ which is an exponential term