Respuesta :

MathPhys

Step-by-step explanation:

An exponential function has the form:

y = a (b)^x

where a is the y-intercept and b is the rate of growth.

In this case, the y-intercept is 0.02.  The rate of growth is 0.01/0.02 = ½.

y = 0.02 (½)^x