Question

Identify the type of function represented by f(x) = 4•(1/3)^x

Answer 1

Answer:

C

Step-by-step explanation:

By looking at the exponent you can immediately tell the function is an exponential one. However, to further determine if it's positive or negative you need to look at the base of the exponent. If the base is above 1 the function is positive, while on the other hand if it is smaller than 1 it is negative. In this case the base is 1/3 which is equal to .33, so this function is an exponential decay.