Question

What is the percent decrease modeled in the function f(x)=0.75(0.15)^x

a)15%
b)85%
c)75%
d)60%

Answer 1

The decrease is C: 75% because the number in the parentheses, 0.15, is the percent of how much is left of the original number. To add up to a full 1, that 0.15 would need to be added with 0.75, which translates to 75%.