Question

Which equations represent decreasing exponential functions? Select all that apply.
f(x)=2.5^3x
f(x)=0.5(0.9)^5x
f(x)=5(1.2)^2
f(x)=8(0.64)^0.5x
f(x)=4(0.45)^x
f(x)=0.75^x

Answer 1

.75^5014 looks pretty small too

Answer 2

f(x)=0.5(0.9)^5x
f(x)=8(0.64)^0.5x
f(x)=4(0.45)^x

Answer 3

Yes, you are correct. The function f(x)=0.75^x represents a decreasing exponential function as well. So, the correct answers are:

f(x)=0.5(0.9)^5x
f(x)=8(0.64)^0.5x
f(x)=4(0.45)^x
f(x)=0.75^x