Will give medal!

Which equation represents exponential decay?
A. f(x) = 8x
B. f(x) = .08x
C. f(x) = 2(4x)
D. f(x) = 10(2x)

Question

Will give medal! 

Which equation represents exponential decay?
	A.	f(x) = 8x
	B.	f(x) = .08x
	C.	f(x) = 2(4x)
	D.	f(x) = 10(2x)

whpalmer4 · Answer

Uh, are there supposed to be some exponents there?  Kindly rewrite your choices with the Equation editor button, or using ^ between base and exponent to indication exponentiation:

$$2^3 = 8$$2^3=8

anonymous · Answer

oh ok hehe! One minute!

anonymous · Answer

Ok i have examined my choices. The answers are the same. they are they way I typed them!

whpalmer4 · Answer

You need to have an exponent in the equation to have exponential decay.  None of those equations have exponents as you have formatted them.