An exponential function is modeled by the equation k of x equals 10 times 1 over 20 to the x power. Does the function represent growth or decay?
1) The function represents exponential growth because the base equals 1 over 20.
2) The function represents exponential decay because the base equals 1 over 20.
3) The function represents exponential decay because the base equals 10.
4) The function represents exponential growth because the base equals 10.
